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The magazine for Sinclair users and Timex/Sinclair users $2.95 


May/June 1983 olume 3, Number 3 


IMPROVING | 
OUR COMPUTER: 


YOUR COMPUTER: 


a 


PROGRAMS: 


06 
0 | 


1402414354 


THE LOGICAL EXTENSION 


Tape Controllers and Printer Interface 

Just look at these fantastic features 

e ZX-99 automatic tape control of up to four cassette 
recorders as input or output under full software con- 
trol. Printer interface for any RS 232 serial printer giv- 
ing the user access to all 132 characters of ASC II 
characters. Data retrieval word processing for real 
mini-computer capabilities. Plus! Automatic tape to 
tape copy, tape block skip and diagnostic assistance. 
e Tape load interface. Say goodbye to the load prob- 
lems associated with the system. The tape loader 
allows the user to test and pre-set the cassette 
recorder to the exact sound level expected by the 
Timex or Sinclair. No more five minute load with un- 
satisfactory results. Unit has LED lights which tell the 
user when the recording level is correct or when the 
sound needs modifying. A real big time saver. 


Ram Packs 16K, 32K or 64K 

Expands the memory available from 2K up to a maxi- 
mum of 64K, but with a real difference. Our 32K also 
comes in a piggyback version that allows the user to 
plug in his 16K and have a full 48K of memory. Finally 
you can buy the 32K piggyback version now and add 
another 32K later for a full 64K in the end. Plugs 

Te directly into the computer and does not require any 
additional power source. Features a LED light to 
signal when the ram pack is operational. 


Keyboards 

The Klik and Executive. Both units offer unique fea- 
tures. The Klik is full replacement for the “Touch Sen- 
sitive” Timex keyboard. Features include separate 
space key, plugs into your Timex, no special case 
required, positive feedback from key depressions. 
Executive keyboard is the ultimate in the ZX-81 
Timex/Sinclair range. It is a full size with special fea- 
tures like automatic repeat key, full length space bar, 
and “beeper sound” operated with an on/off switch, 
plugs into the computer or we will retrofit it for you. 


Users may up-grade gradually as their needs user to expand his system as his needs change. ible or selectable. Now all of this and our full 
change. Each unit is fully tested and carries our Finally all of our software has been specially range of software (over 50 choices) is available 
90 day guarantee. Purchase the full suite and Selected to offer the user a tested and reliable from your local Timex computer dealer or store. 
you have a mini-computer with real data pro- product that has been developed with two impor- So come on in and try out the latest logical 


cessing. Our product range allows the intelligent tant criteria: user friendly and hardware compat- extensions. 


PRODUCT UNIT — TOTAL Data-Assette has over 50 software programs in its library, and we are 
NAME and CODE PRICE QTY VALUE adding more each month. If you wish to see our catalogue or join our mail- 
ing list, just send $2.50 which will apply towards your first order. 


| $ 49.95 he eee Information and product spec sheets may be obtained by mail, or phone our 
| $109.95 ie Sees HOT-LINE 800-523-2909; in Penna 215-932-4807. 
$9995 | | | PLEASE RUSH MY ORDER TO: 
Tape Load Int. ee ee ee a | ate + 
gee aoe 
TX/ZX ASCOM $ 24.95 Send to: cr near li 
Shipping/Handling l : $4.95 Oxford, Pa. 19363 


| Lll 
l TOTAL ORDER š 


As 


AN 
ae 


‘ 7 n 


ee 


~ MOTHERSHIP 16K 


or Your Timex /Sinclair 1000 


You can find MOTHERSHIP and all of SOFTSYNC’S 
wide variety of programs for the TS1000/ZX81 at your 
local retail store or write us for a free catalog and 
program listing. Prices range from $14.95 to $19.95. 


Please rush me 1 MOTHERSHIP program. | enclose $16.95 j 
+ $1.50 shipping and handling (N.Y. residents add 
sales tax). 


i 
1 
O Please send me a free catalog & program listing. 
l 


NAME 
ADDRESS 


CITY 
STATE 


ZIP 


ee esr ene ee 


I SOFTSYNC, INC., 14 East 34th St. New York, NY 10016 
(212) 685-2080 


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i 
ici ici se icp eh tice a i A 


= hn a Seven New Programs 2 
a% <; | For the Small Business - 


F ] k 


L f |» Customer Credit File -< 

| «General Ledger ; 
A | _ eEcucu-Diary n e 

/ / 7 « Exec-Address & Phone File a 

7 | e Accounts Payable 

i | «Accounts Receivable . : 


l Ji e Inventory p 


/ i are | S 


VAMT "Fue 
LENTAURS 


hy - *® a 
* a 


Available at Your Local Retailer CRIB YT E 


for your 
The Creative Force 


Timex Sinclair 1000 e. Sinclair ZX81 . P.O. Box 948, Waterbury, CT 06720 


/ 203-7 53-8308 


The Magazine for Sinclair users and Timex/Sinclair users 


— | 


May/June 1983 


DEPARTMENTS AND ARTICLES 


OD SYNC Noles. 05 5 ee T Grosjean 
a Gitcholdz Ropon. i. P86 ia As ae cule 
6 Timex, Sinclair, and the Clones..................... Ahl 
7 Letter from England.........................0.. Adams 
BUYER’S GUIDE SECTION 
IMPROVING YOUR COMPUTER 
10 Keyboards and Accessories......................0.04. 
15 SAVEing andLOADing........................0.00 05. 
23 Power Supplies and Accessories...................... 


EXTENDING YOUR COMPUTER 
28 RAMs, ROMs, and EPROMs.........................5. 
38 Interfaces, Boards, and Connectors.................... 
NTE ole eee eek. pei eek. ce eke oe ae 
PROGRAMMING YOUR COMPUTER 
42 Programming Aids, Utilities, Toolkits................... 
47 Assemblers, Disassemblers, Compilers, Monitors. ...... 
USING YOUR COMPUTER: PROGRAMS 
48 Graphics Programs and Aids.......................... 
50 Educational Programs.......................0c eee e 


60 Stocks and Investments.....................00. cece ee. 


re LORS A VERE be ad eed ae eae Pe eae 
Staff 

Foonder/Editorin Chief oaiae ei ee ee David Ahl 
MANIS TR Sec): RES ae a oa eg ea a e Parle Paul Grosjean 
MIMS TID EdItOR. A ae el le a a Ae BN ee David Ornstein 
CRK COrespondent a T Belo hs Ra Martin Wren-Hilton 
ADTEC ORE E E a ce eee EA a TU A Patrick Calkins 
Assistant Are Dinector.. 6.60 2 el Ee OSs Diana Negri Rudio 
CST oa Ln ek a oS eo eae re ea oe a ae LE Sr St, Karen Brown 
Co Ein ROS Toe oe a ee a ae ei ee ere eee ute (fae) 2 Renea Cole 

ersonneland Finance...........................Patricia Kennelly 
EUMENE oe ee i ho cage ee Frances Miskovich 
Pasa. EAN es eS ee es Bh ahs hk. ED ge amen T ee Carol Vita 
Advertising Sales Manager: ei0 aAa ee ea, So Karen Musmeci 


Consumer Computers and Electronics Division of Ziff-Davis Publishing 


BRE 251 FSi a SA og Le Ny ae ee President 
AO B IDOS IE Rope a) a aa es COL Seay GE Vice President, Marketing 
Carole Mandeh o ris Nh cehos wos Gee Vice President, Circulation 
Eileen G. Markowitz...............Vice President, General Manager 
Péter Blank 2:30.00 ES A Gein SUR ces Creative Director 


May/June 1983 


Volume 3 , Number 3 


63 Financial Records.................. 00. .c cece eee eee 
6/ Sprosdthoos 3. See ee ee ae 
io Oneckings: © 88 oo See a a a 
To IWONA a Aa i a eh a eae 
TO Bopointmente. od eek eae 
176 Word Processing... ... 2.00.00... cc ccc cece cc cuceeeees 
77 Miscellaneous Programs.........................0.05- 
79 Program Collections. .... 0.0 cece cece eee. 
0 Pe re ON a ros frees cae, ae, Seer 
120 Math and Science.................. 0... c ccc e eee ees 
123 Music and Soui o 0.0 c cece cece eee eee 
ENJOYING YOUR COMPUTER: GAMES 
84 General Games.............000. 000. cece cece ees 
Do. Spsce Games, 0.0 eer eee AS 
100 Mazes, Dungeons, Castles...................... Peat ead 
104 Adventure Games... aaa 
107 Shoot ’em Up Games.................... 0c. cece eee. 
TOS Casino Gates <2. es. Sai ee eee 
110 Game Collections =)... 88S os ee 
112 Other Games onthe Computer........................ 
id Oneal E 
124 MISCELLANEOUS PRODUCTS AND SERVICES 
128 DIRECTORY OF SUPPLIERS 


Volume 3, Number 3 


SYNC (USPS: 585-490; ISSN: 0279-5701) is published bi-monthly by 
Ahl Computing, Inc., a subsidiary of Ziff-Davis Publishing Company. 
David Ahl, President; Elizabeth B. Staples, Vice-President; Selwyn 
Taubman, Treasurer; Bertram A. Abrams, Secretary. 39 E. Hanover 
Ave., Morris Plains, NJ 07950. Second class postage paid at New York, 
NY 10001 and at additional mailing offices. 

Copyright © 1983 by Ahl Computing, Inc. All rights reserved. 

Subscription rates: USA: One year (6 issues), $16; two years (12 issues), 
$30; three years (18 issues), $42. Canada: $3 per year additional. Other 
foreign: $5 per year additional. 

For SYNC advertising information, contact Karen Musmeci, SYNC 
Advertising Sales Manager, Ziff-Davis Publishing Company, One Park 
Ave., New York, NY 10016 (phone: 212/725-4216). 

All other correspondence should be addressed to: SYNC, 39 E. Hanover 
Ave., Morris Plains, NJ 07950. In U.K. to: SYNC, 27 Andrew Close, Stoke 
Golding, Nuneaton CV13 6EL. 

Postmaster: Send address changes to: SYNC, PO Box 789-M, Morris- 
town, NJ 07960. 


Cover illustration by Mark Watts. 


reregepesven 


Acts | 


Sync nates =ë | 


We hope that this issue of SYNC will 
put to rest the complaints we hear from 
time to time that there is no support for 
the Sinclair and Timex/Sinclair com- 
puters. The response to our invitation to 
submit product descriptions has been 
overwhelming. In fact, we could not in- 
clude them all in this issue. So our next 
Resources Column will be a “Buyers 
Guide Supplement” to complete the list- 
ings along with any new product notices 
we receive. 

The following categories could not be 
included. You can contact the suppliers 
for further information. 

Horse Racing (from CRC, A. Doty, M. 
H. Marks, 3G, UAS). 

Biorhythms (from  Fisher-Marriott, 
Gladstone, Orbyte, Softsync, Syber, 
UAS). 

Astronomy (from Bug-Byte, Gladstone, 
Kamel, Robert C. Moler, Bob Woish, Z- 
West). 

Hangman (from American Micro, 
Gladstone, Haymarket, R. Midura, Soft- 
sync, Z-West). 

Golf (from Asia Tsucho, Com- 
putronics, Emvee, Mindware,_ R. 
Midura). 

Books, publications. 


How to Use 
the Buyers Guide 


First, the Buyers Guide is a listing of 
products and services available for the 
Sinclair ZX81 and the Timex/Sinclair 
1000. It is not a catalog. We cannot guar- 
antee the accuracy, completeness, or 
timeliness of the information printed. If 
you see a product that is of interest, we 
suggest that you make an inquiry of the 
supplier before sending off an order with 
a check. Our aim has been to give you as 
complete a listing of resources as possible 
with an indication of cost. 

Next, the products are arranged in cat- 
egories. Since some products could easily 
be listed in several categories, check in 
more than one place. 

The listings follow this format: 

1) Supplier’s name in bold face type. 
The suppliers in a given category are 
arranged alphabetically. All the products 
from one supplier in a given category are 
listed together. Consult the Directory of 
Suppliers for the address. This Directory 
is arranged in alphabetical order by com- 
pany name. If the supplier name is a 
personal name or includes a personal 
name, the entry should be found under 
the last name. 


May/June 1983 


2) The product name. Programs and 
books are italicized. The supplier’s num- 
ber, if any, follows in parentheses. 

3) RAM pack requirements are for the 
ZX81/TS1000. A few products are for 
the Spectrum and so indicated. The for- 
mat of the material follows. This was not 
always clear in the information we 
received. 

4) Prices in dollars, pounds or, in a few 
cases, Canadian dollars indicated by 
(Can). Suppliers will usually take checks; 
a few specified money orders only. The 
buyer is also responsible for any sales 
taxes on orders from suppliers from the 
same state. 

5) Shipping and handling. “pp.” indicate 
postpaid. “s&h” means that there is a 
separate charge for postage, shipping, and 
handling. This also was not always clear 
in the information we received. 

6) Product description. 


Next Issue 


The theme section of our next issue 
will be “SYNC at the Workbench,” fea- 
turing hardware articles ranging from 
building a robot to making minor modifi- 
cations of your computer. We will also 
include the “supplement” to our Buyer’s 
Guide issue. 


The TS1000 for $69.95 


Timex announced on March 11 that 
the suggested retail price for the TS1000 
has been reduced to $69.95 and that the 
rebate program of $15 would continue 
through April as announced earlier. 


Glitchoidz Report 


Minotaur, 3:2, p. 80. 

The list of variables required is as 
follows: 

Enter in the immediate mode: 


LET A=1 

LET B=1 LET L=33 
LET C=1 LET O=0 
LET D=1 LET P=1 
LET E=1 LET Q=2 
LET F=1 LET R=3 
LET G=1 LET S=5 
LET H=1 LET T=20 
LET I=1 LET U=31 
LET J=512 LET V=128 
LET K=16396 LET DN=.3 


Do not use RUN to start. Use GOTO 
10 (to input density) or GOTO 20 (to use 
the same density). 


Printers 


One of the most frequent questions we 
get is, “What about printers?” In addition 
to the Sinclair ZX Printer and the Timex/ 
Sinclair 2040 printer, we have received 
the entries below. We note also that sev- 
eral suppliers are offering interfaces for 
standard printers. 


E. Alvarez 
Paper for ZX Printer 
3 roll pac for $12 pp. 

Paper rolls in exact size for the ZX 
Printer. Sharp, bold characters on pale 
metallized stock. Same day service, and 
economy. 


CAI Instruments Inc. 
CAI/P40 Printer. $119.95. 

The CAI/P40 printer is a 40-column 
thermal printer that prints all TS1000 and 
ZX81 alpha-numerics and graphics. Used 
with either a mini-interface ($20) or the 
CAI/0 board. Printer has six modes of 
print: screen dump, print listing, and print 
string, each of which may be printed in 
normal or expanded style. 


Memotech Corporation 
Seikosha GP-100A Printer Package. 
$399: 

The Seikosha GP-100A uses a 5 x 7 
dot matrix printing format with ASCII 
standard upper and lower case character 
set. Printing speed is 30 characters/ 
second with a maximum width of 80 
characters. It uses standard fanfold pa- 
per up to 91/, inches wide. The GP100A 
is offered as a package including cable 
and interface. 


Seikosha GP 250X Printer Package. 
$449 

The Seikosha GP-250X uses a 5 x 8 
dot matrix printing format with ASCII 
standard upper and lower case character 
set. Printing speed is 50 characters/ 
second with a maximum width of 80 
characters. It uses standard fanfold pa- 
per up to 9’/, inches wide. The GP 250X 
is offered as a package including cable 
and Centronics interface. 


Mindware Inc. 

From Eagle Sales 
The MW-100 Printer. $119 plus s&h; 
includes 5 rolls of paper and any 2 soft- 
ware programs. 

The only ZX81/TS1000 plain paper 
printer available in the U.S. Dot matrix. 
Uses keyboard printing commands. Stan- 
dard 1 3/4 inch paper rolls. Ribbons read- 
ily available. Needs no interface. Three 
modes: Mode 0: Prints each 32 character 
line using 2 lines on the tape for each 
screen line. Mode 1: Divides the screen 
in half vertically; prints each; then tape 
them together for full screen. Mode 3: 
Prints 16 character lines. 


Timex, Sinclair, and 


the Clones 
David H. Ahl 


At the Winter Consumer Electronics 
Show in Las Vegas, there was much fan- 
fare surrounding the official introduction 
of the Timex/Sinclair 2000. Dan Ross, 
Vice-President for Computer Products, 
and the entire Timex crew were there as 
well as Clive Sinclair and Nigel Searle 
from Sinclair Research in Britain. On a 
much lower key, a Sinclair clone and a 
look-alike that ran Forth were shown by 
smaller companies. 

We've told you about the 2000 (Sinclair 
Spectrum) in previous issues of SYNC, so 
before looking at the other new hardware, 
let’s hear what Dan Ross has to say about 
marketing. Today, about 14,000 retail 
outlets are carrying the Timex/Sinclair 
1000; Dan expects that number to in- 
crease to 25,000 or more by the end of 
1983. Catalog showrooms, toy chains, and 
bookstores are all in Ross’s sight, but he 
also plans to target other channels of 
distribution, most notably schools and 
banks. 

By June or July, says Ross, several 
programs will be instituted between 
Timex and different banks. He thinks that 
banks will be rushing to give away the 
1000 as a premium for opening new 
accounts, especially when Timex intro- 
duces a $99 modem (expected in the first 
quarter of 1983). 

Ross feels the modem is important be- 
cause banks are very interested in de- 


The Timex/Sinclair 2000 


veloping at-home electronic banking ser- 
vices, but the terminal cost thus far has 
been prohibitive. A computer/modem 
combination with a list price of $185 could 
change all that. 

Like Apple, Atari, and Tandy, Timex 
sees the educational market as having a 
vast, untapped potential. Our opinion is 
that Timex might be underestimating the 
amount of software, courseware, and 
handholding support that is necessary to 
get into the educational market in a major 
way. Time will tell. 

How many Timex/Sinclair 1000 and 
Sinclair ZX81 computers have been sold? 
Of course, the number is a moving target, 
but as of the end of 1982, our best es- 
timate is 600,000 Timex/Sinclair 1000s, 
and about the same number of ZX8ls, 
although only 200,000 of them are in the 
United States. 

Does that make the Sinclair the best 
selling computer in the world? We think 
so, and Clive Sinclair and Dan Ross cer- 
tainly agree. However, both Commodore 
and Texas Instruments also claim to be 
number 1 in sales. Commodore people 
were telling everyone in sight at CES that 
they had produced one million Vic 20’s, 
while TI people were just saying the 
99/4A was the best seller, period. No 
matter who you believe, 1983 should 
shape up to be a most interesting year. 

This year will be interesting for many 


reasons. First, with Time magazine en- 
dorsing the personal computer as 
“Machine of the Year,” the home com- 
puter gained respectability and urgency 
in the minds of millions of consumers. 
Second, as more people enter the market 
as consumers, volume goes up and prices 
come down. But beyond the effect on 
prices, more customers mean that manu- 
facturers will offer a wider diversity of 
peripherals, software, and applications. 

In addition to the many new peripherals 
and software packages at CES of interest 
to Timex and Sinclair owners, two new 
computers were announced. The first was 
a clone of the Timex/Sinclair 1000 with 
the main difference being a “real” key- 
board. Well, it doesn’t exactly have a 
typewriter keyboard, but rather little rub- 
berized “Chiclets.” Dubbed the Futura 
8300, it was being shown in the Unisonic 
booth. 

I spoke with the Chinese designer of 
the Futura and asked him if the Basic was 
licensed from Sinclair. All of a sudden, 
his English seemed to falter, but he quick- 
ly recovered, shrugged and asked why it 
should be licensed. Why, indeed? I’m not 
sure, but it seems to me that it should be. 


The Jupiter Ace 


The Unisonic Futura 8300 


I then went to find someone from 
Unisonic who could tell me when the 
machine might be marketed, how we 
could get one for review, and so on. “We 
don’t have anyone to deal with the press,” 
I was gruffly told. “How should I go about 
getting one?” I asked, reminding the 
gentleman that we published SYNC and 
Creative Computing. “Buy one,” he said 
as he walked away to find someone else 
to insult. Although Unisonic is a strict 
orthodox Jewish company and pre- 
sumably its employees have had a fine 
upbringing, we have been singularly un- 
impressed with their courtesy and product 
support in the past. Thus, we do not have 
high hopes for the Futura 8300, even at 
the suggested retail price of $80. 

Another computer which also looked 
like a T/S1000 with a real keyboard was 
the Jupiter Ace. Unlike the T/S machine, 


ad iy SIS N 3 A > 
You are patrolling Gamma Sector, home of the con- 
federacy’s most remote outpost. Beyond lies the for- 
bidden territory of the Zarons, the most dreaded war- 
riors in the galaxy. Suddenly a Zaron fighter flashes 
onto your screen, in attach configuration. He’s prepar- 


> torpedo attach 


This action-packed war game puts YOU behind the 
periscope of your submarine, and half of the enemy 


5 torpedos left and you can’t outrun them. You must 
battle your way through to safety and make every shot 
count! But, the enemy isn’t predictable... 


fleet between you and your home port! You have only: 


the Jupiter Ace speaks Forth, a powerful 
language that adherents claim is ten times 
faster than Basic, four times as compact, 
and much more flexible. 

The Jupiter Ace has a Z80A micro- 
processor, 3K RAM, a 40-key keyboard 
with auto repeat, graphics resolution of 
64 x 46 pixels (which the designers claim 
to be equivalent to 256 x 192 pixels), an 
internal speaker, a cassette interface, and 
an expansion port for memory and other 
peripherals. 

The machine will be marketed by Data- 
Assette, 56 South 3rd St., Oxford, PA 
19363, (800) 523-2909. 

Yes, there was a great deal more of 
interest at CES and we came home from 
the show with armloads of literature, 
decks of business cards, and scores of 
promises to send products for review. 
You'll see it all on these pages. Fa 


ing to fire so you’d better think fast! You swing your 
craft up to adjust your aim but no, he’s evading you by 
peeling off to your left! You follow him down but you 
see his phasers beginning to rotate. Your computer 
warns that he is about to fire! You ram your pitch con- 
trol to the floor and there, for a split-second, he’s 
centered in your sights. The blinding flash that follows 
confirms your kill! You breathe a sigh of relief. But 


robotec. n. 


P.O. BOX 55 
ROSSFORD, OHIO 43460 
419-666-2410 


PHONE ORDERS WELCOME! 
Ask for the ROBOTEC order desk. 
Have your VISA or MC ready. 


Up to 4 submarine captains can compete against each 
other and the enemy. Aim well! 


FL Sons USF L. 
tok ok 


| These programs have complete schedules, results, 
- team statistics, averages, rankings, division statistics 
and averages, and more! And all of this for every team 
in the league for TWO SEASONS (USFL edition 1 
season only). The unique updating feature allows you 
to enter the results of a week’s games and the pro- 
gram recaiculates all of the statistics for you so you 
always have the most up-to-the-minute information. 
The NAL 82-84 edition is updated for the 1982-83 
season and has the schedules for the 1983-84 season 
(you update the stats as the games are played, your 
newspaper publishes the info.) The NFL 81-83 edition 
is totally updated. Order the USFL 83 edition, updated 
when sold, or the USFL 83 FINAL edition for July 
delivery. 16K $19.95 Each 


SAVE $7.00!! ANY 2 FOR $32.90 


16K {$14.95 


All software on high quality cassettes 
Fully Guaranteed 


1982 NEW YORK JETS 
630 


WEEK OPPONENT NJ 
MIAMI 


45 
AT NEW ENGLAND 7 31 
BALTIMORE 0 37 
GREEN BAY 13 15 
DETROIT 13. 28 
TAMPA BAY 17 32 


- a = = = - =- = - =- - = 


MIAMI 
AT MINNESOTA 14 42 
AT KANSAS CITY 37 13 


OONOVAUN= 
> 
sa 


PRESS ENTER TO CONTINUE 


ore t+ + 


p7 = = nmm i 


ARE YOU READY TO ENLIST FOR THE 


PHASER WNARS ? 


wait ... Another Zaron fighter has appeared on your 
screen... 

With each Zaron you destroy the pace quickens. And 
watch out, some of the Zarons are equipped with their 
new cloaking device! Arcade style game with ex- 
cellent graphics and action. The computer controls 
the Zarons and keeps score for two players. Ten skill 
levels. 


GRAPHIE 
QRAPh I 


Indispensable for anyone working with algebra, trig, 
analytic geometry, and calculus. These programs turn 
your computer into a powerful mathematical tool. You 
enter an equation and the computer calculates points 
and plots the curve in the Cartesian Coordinate 
system. GRAPH | plots one curve in four quadrants. 
GRAPH Il plots two curves simultaneously. The pro- 
gram protects against most error conditions (division 
by 0, etc.) By multiplying by a factor, any curve ean be 
plotted within the displayed field. 


16K BOTH FOR $14.95 
man ee ee ee ee eee ee ee D ee ee a M MD 


letter 
Fr om 


erngianci 


Stephen Adams 


Dear readers by the time you read this, 
you may have in the shops the Timex/ 
Sinclair 2000 which is your equivalent of 
the ZX Spectrum. 

The Spectrum can have 16K or 48K 
RAM provided inside the case (the extra 
32K RAM chips and decoding can be 
added to the sockets at a later date). 
There is no RAM CS connection provided 
on the expansion port so once 48K is 
fitted, no EPROMs or extra devices can 
be inserted into the memory map. As the 
upgrade is via 32K chips and needs 150ns 


16K $14.95 


i Introductory Offer Save $5.00!! Any [e "eme J Price T Toa 


(all EN EN Crete Pek 
! two$14.95 cassettes for only$24.90 t1 
i TD PRL STON Se 
§Name SC RES PS CS 
ae Ohio Residents add 6% sales tax EEG ) 
Shipping and handling $1.25 per tape 
È Total U N 


g City, State, Zi 


=e 
1 ae = Card No. 


Signature 


[C] Check or money order enclosed 
C] Charge to: VISA or MASTERCARD 


Exp. Date 


SINWARE announces two new pro- 
grams in machine code to enhance the 
power of BASIC programmers. (16K 
required. ) 


olEF 


STEP is a debugging tool that quickly 
pinpoints BASIC programming errors. 
STEP provides line-at-a-time execu- 
tion of your programs and allows you 
to check the display and the values of 
program variables for unexpected re- 
sults. Other modes allow breakpoints 
to be set by line number for quick 
testing of long programs, by the num- 
ber of passes for testing loops, or by 
limits on specified variables. 


STEP occupies 3K at the top of your 
16K memory and is available as you 
write and test your program. STEP is 
simple enough to be used by the learn- 
er and competent enough for the ex- 
pert. Detailed instructions include a 
sample session for quick mastery of 
program features. 


Z-TOOLS 


Z-TOOLS is a set of BASIC utilities that 
enhance your programming power. 
MERGE programs from your own li- 
brary of tested subroutines to build new 
programs quickly. RENUM provides 
neat listings, includes numbered 
GOTO’s and GOSUB’s, and flags those 
with expressions. COPY and DELETE 
blocks of lines for quick restructuring. 
VERIFY the contents of your tape against 
memory and eliminate losses to defec- 
tive recording. All functions menu driv- 
en and error checked. 


Z-TOOLS is a compact 2K and is pro- 
vided in two versions on one cassette 
for 16K or for expanded RAM. 


SINWARE’s other products are those 
household names HOT Z, for cracking 
the mysteries of machine code, and Z 
EXTRA, for great displays and easy 
data storage. 


PRICES 

er er ily Sak Cassette $14.95 
Z PGI ioe ke se Cassette $14.95 
ZEXTRA Sock xs A Cassette $19.95 
HOT Z...16K or 32K + Cassette $19.95 
HOT Z-E....Four2716EPROMs $40.00 

SINWARE 
Box 8032 


Santa Fe, NM 87504 


Letter, continued... 


type chips, upgrades from other suppliers 
have been slow in coming, but some now 
cost £24.50 as against Sinclair’s price of 
£50 (which also requires the computer to 
be returned to Sinclair). A novel way 
round fitting extra chips is to add an 
“ADAM” adaptor which allows the use of 
a 16K ZX type RAM pack on the back of 
a Spectrum giving 32K for Basic. The 
RAM pack cannot be used directly for 
two reasons: not only is the memory area 
filled with RAM, but also the top eight 
address lines of the expansion bus are on 
either end of a 28 way p.c.b. edge instead 
23 way edge of the ZX81. This makes any 
memory device incompatable and only 
I/O devices which restrict themselves to 
the address lines A7, A6, and A5 are 
useable. Sinclair has extended the number 
of bits required by his devices to five, so 
that if any I/O address which has one of 
the lower bits as Binary 0 will turn on his 
devices. This is covered in the manual. 

The choice of ASCII as the character 
set has speeded up the production of 
games etc. for the Spectrum, but the 
screen display, although memory mapped 
and controlled by the ULA, is weirdly 
mapped. This leads to problems when 
you wish to use the screen with machine 
code or POKE it directly. The screen 
itself takes up 6912 bytes of RAM from 
the basic 16K and the lower half is map- 
ped in dots rather than characters. Each 
Binary 1 represents an INK color, and 
each Binary 0, a PAPER color. This ex- 
plains why there are only two colors 
allowed per character square. The top 
half called the ATTRIBUTE file contains 
the colors for INK and PAPER (out of a 
choice of eight), plus whether they should 
be FLASHing, BRIGHT, etc. The attrib- 
ute file is normal mapped so that char- 
acter 0,0 is the first followed by 0,1, etc. 
One of the interesting developments is 
that the whole character set can be rede- 
fined as well as the user definable char- 
acters (of which there are 21 A-U). By 
using a routine included in the “Horizon” 
cassette which is given free with every 
Spectrum, various sizes of characters can 
be made, giving up to 56 characters per 
line. 

Many games etc. use this to squeeze 
more instructions or characters on to the 
screen. This and the fact that saving ma- 
chine code and variables separately on 
the Spectrum is easy has encouraged pro- 
grammers to separate their programs into 
sections to save on memory and make 
them harder to copy. Time Gate by 
Quicksilva is a good example as the in- 
structions LOAD the program after the 
user has read them. This enables the full 
use of memory in this adventure type 
game. Games mostly seem to be based on 
Pacman, Frogger, Space Invaders, and 
Asteroids at the moment. 


Having machine code so easily avail- 
able, a lot of companies have come out 
with assemblers and disassemblers as well 
as monitors for the Spectrum. One of the 
best disassemblers is SPDE from 
Campbell systems and one of the best 
assemblers is ULTRA VIOLET from 
ACS. Pascal and Forth should just be a 
short time behind. Also available, but 
untried by me are two Basic compilers 
which turn out a machine code version of 
Basic program which is at least 100 times 
faster. These are available from PSS and 
SOFTEK. 

The tape interface works at 1500 
BAUD on the Spectrum and is very reli- 
able. It has, however, one disadvantage 
over the ZX81 in that the cassette leads 
have to be constantly plugged in and out 
as feedback from the tape recorder stops 
a program or data being SAVEd properly. 
To stop this the EAR lead must be dis- 
connected during SAVEing. This has led 
to the more common use of a cassette 
switch which allows you to disconnect 
one lead as well as amplify the rather 
weak BEEP sound effect from the 
Spectrum. Abacus does one if you are 
interested, and there is a programmable 
version available called an RZ1 which 
also controls the tape motor. 

Coming back to the BEEP command 
for the moment, this only produces one 
sound at a time and stops all computing 
while doing it. This has lead to the pro- 
duction of various sound boards based on 
the AY8910 chip which will put out 
sounds independent of what the processor 
is doing. One of the best ideas I have seen 
yet is to include with it A/D and a set of 
joysticks plus an amplifier. This is done 
by Micro Power as a plug on board. It 
can also amplify the BEEP of the Spect- 
rum if you wish. 

Another use of the BEEP loudspeaker 
is employed by several of the games, that 
is, of having your Spectrum talk to you. 
This is achieved only in machine code 
and can either be reproduced by talking 
into a microphone and recording the digi- 
tal signals to play back as speech or by 
using preprogrammed sounds to repro- 
duce the voice. Both are available, and 
speech may be available later as an add- 
on chip. 

Games are obviously one use of the 
Spectrum, but a lot more businessmen 
are looking at the Spectrum as a first step 
in computerizing their businesses. There 
will very soon be printer interfaces for 
the Spectrum, and Sinclair is launching a 
word processor soon. This is to go with 
the promised RS232 interface for a print- 
er. The microdrive controller will be fitted 
inside the RS232/network interface box 
and so two boxes will now be required to 
use the “coming soon” Microdrive which 
is well over due. The network interface 
specification, modem, etc. are still to be 
published. 


NEW FROM TIMEWORKS 
Computer Control Center. 


For All Timex-Sinclair 1000 and Sinclair ZX81 Computers. 


A handsome, compact, work station that consolidates work 
space and provides remarkably faster, easier operation! 


FEATURES: 

e Effectively eliminates cluttered cables in e The Computer Control Center costs just 
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R ON/OFF Switch eliminated plugging and COMPLETE MONEY BACK GUARANTEE. 
unplugging. If, for any reason, you are not completely satisfied, you may 

e Accommodates all brands of 16K. 32K. 64K_ return The Computer Control Center, in good condition (freight 
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: oe provision for Printer and Tape Deck | MBR Distributors PO Box 321 Deerfield, IL 60015 

ook-up. 


Rush me ______ Computer Control Centers @ $2995/ea $ 
Plus postage & handling____ @ $4.70/ea $ 


e Holds your Software Tapes in neat, specially 
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e Made of high impact, black molded plastic. 
The Control Center stands 3%” high, 20” 
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Improving Your Computer 


Keyboards 
and Accessories 


Audiograph Co. 
Chirper 
1 K and up. $9.95. 

The Chirper sound improves speed 
and accuracy of keyboard data entry. 
The sound varies from a buzzy-chirp to 
a click and depends on what the com- 
puter is doing. Sound is produced when 
a program runs, so some sound effects 
can be created. The Chirper installs eas- 
ily inside. 


Centronic Inc. 
Keyboard Beeper. $21. 

Gives feedback for keyboard by caus- 
ing each key press (except shift alone) to 
produce a distinctive BEEP. Makes the 
use of the membrane keyboard much 
easier. Fits inside computer case and 
requires no soldering. Compatible with 
most full sized keyboards. Can be used 
even with graphics ROM installed. 
Optional on/off switch available at $3.50 


ClearTouch 
ClearTouch. $8.50 plus $1.50 s&h. 

A thin transparent keyboard overlay 
that speeds input and improves accuracy. 
Lets you feel key positions, yet thin 
enough not to interfere with typing. Easy 
to install. Makes typing a pleasure. Try 
for 10 days. 


Double “H” Electronics 
Double “H” Keyboard. $49. 

Full-size, full-stroke, 53 key, fully 
assembled, gold contact keyboard for all 
Sinclair ZX80/ZX81, MicroAce, and 
TS1000 Computers. Full length space bar 
and 2 oversized shift keys for easier 
typing. Includes plans and schematics for 
three special circuits you can build to 
utilize the 12 extra keys: 1) Electronic 
shift-lock. 2) Automatic repeat. 3) Auto- 
matic shift. 


Special Circuit Parts Kit. $15. 
All electronic parts including ICs with 
sockets, LEDs, resistors, capacitors, etc., 


10 


to build three special circuits for ZX80, 
ZX81, MicroAce, and TS1000: 1) Elec- 
tronic shift-lock. 2) Automatic repeat. 3) 
Automatic shift. Circuits will work with 
most addon keyboards with extra keys, 
such as the Double H keyboard. 


Double “H” Keypad. $6 to $8. 

Two different keypads available, 
matching our double H keyboard. Both 
are assembled but unwired, so you can 
use them either for numerical keypads or 
as extra keys for the special circuits 
above. 8 key keypad: $6. 14, $8. 


Data-Assette 

Auto Repeat Module. $15. 
Automatically repeats any key held 

down for longer than 1’/, seconds. 

Small slim PCB easily installed. No ex- 

tra switch required. 


“KLIK” Keyboard (KBO1). $79.95. 

40 key keyboard attaches directly to 
the TS1000 or ZX81, replacing the 
present membrane. Connects in minutes. 
Positive “KLIK” response from the 
keys assures that the information has 
been entered. Additional key available 
for any purpose. All legends marked in 2 
colors just as the original. 


Kayde Keyboard (KBO02). $79.95. 
Fully cased fully sized keyboard for 
the TS1000 or ZX81. 40 full stroke keys 
with all legends printed in 2 colors. Sim- 
ple soldering of ribbon cable is all that is 
needed for installation. Repeat key. 


Jigsaw Executive Keyboard (KB03). 
$89.95. 

Fully cased with 44 full stroke keys. 
Special features include a Bleep for every 
key, a repeat key, and a full space bar. 
An additional shift key and an “ON- 
OFF” Bleep and CPU switch makes this 
an extremely useful addition. Easily in- 
stalled, fully guaranteed. 


Fulcrum Products 
Keyboard Bleeper. $21. 

Provides feedback missing. Touch sen- 
sitive keyboard cheaply. All 210 char- 
acters. Bleep in SLOW and FAST modes. 
Easy installation; no soldering required; 
all connections plug in. Illustrated instruc- 


tions. Fits inside case under keyboard or 
PCB; no trailing wires; suits most full size 
keyboards. On/off switch $3 extra. 


Ganhart/EARTHings 
Typex Keyboard Overlay. 
$5.95 plus $1.50 s&h. Visa/MC. 

Allows “touch typing” and improved 
game playing. Made of clear, self-adhesive 
vinyl with key-shaped rectangular holes 
for easy finger positioning and tactile 
feedback. Mail or phone orders. 


FileSixty 
Buttonset. 

Keyboard with moving keys. The inex- 
pensive answer to touch keyboard head- 
aches, Unit fits directly over existing key- 
board and is held in place over the key- 
board by adhesive strips. Moving keys 
press the membrane keyboard with spe- 
cially marked dimples on the underside. 
Keys are color coded and all functions 
clearly printed. Write for details. 


Gladstone 
Professional Keyboard (K70). $79.95. 

47 keys, full sized space bar, with a 
flexible plug-in connector (no soldering 
required). 


Keyboard Case (E70). $25. 

Metal case which holds both keyboard 
and computer; computer edge connector 
extends from rear allowing full use of 
plug in peripherals. 


dk’tronics Keyboard. 

Cased (D10). $119.95. 

Uncased (D11). $89.95. 

Case (D12). $29.95. 

52 keys with 12 for keypad. Keypad 
repeats 0-9, has full stop and shift key; 
allows cursor with one hand for easier 
entry of numerical data. 15 x 9 x 2 1/2 
inches. Computer fits inside. Inside case 
is a motherboard for RAM expansion. 
Connects with ribbon cable (supplied); 
no soldering required. 


Memotech’s Plugin Keyboard (A73). 
$99.95. 


SYNC Magazine 


THE FT DUWWARE LNE oF SOFTWARE 
FOR TIMEX/SINCLAIR COMPUTERS 


MATRIX THE FAST ONE 2Z-TEXT INVENTORY FORECASTING SLIDE SHOW CRITICAL NUMERIC TOOLKIT SCREEN KIT 


PLANNER Store, organize Ausefulword CONTROL GRAPHS Creates and PATH Solves math Shortcut Routines to 
An all-purpose and retrieve processing Two ways to Analyzes runs video Gets complex formulas and commands for enhance 
electronic data instantly. program. keep track of growth display shows. scheduling draws graphs. programmers. screen 
spreadsheet. $24.95 $19.95 inventories. trends and $22.95 under control. $24.95 $19.95 displays. 
$22.95 $22.95 plots graphs. $19.95 $19.95 
$22.95 
| one aa 
cei 


aA 
MONITOR GULP LABYRINTH PILOT GRAPHIC GOLF CROSSWORD ANAGRAMS WORD TEST MULTIPLE COSMOS 
Tests and Gobble your Can you find Cockpit A challenging Create and play Try to put the All kinds of CHOICE Hyperspace 
debugs way through your way controls 18-hole your own scrambled question and Can you pick laser battles 
programs in mazes, chased through that teach you golf course. crosswords. words answer tests. the correct among the 
machine code. by ogres. 3-D corridors? howto $9.95 $15.95 back in order. $15.95 answer? stars! 
$19.95 $15.95 $15.95 navigate. $15.95 $15.95 $15.95 
$19.95 
@ FAST LOADING Mindware’s proprietary @ QUALITY TITLES Mindware software is @ USER-FRIENDLY Documentation provides 
Quickload™ feature lets you load written by top British software clear instructions, learning examples, 
programs up to four times faster developers, including Picturesque, and trouble-shooting tips. 
than conventional Timex/Sinclair Hewson, Hilderbay, Asher, Campbell, (All programs require 16K.) 
programs. Quickload software also Axis, Jones, Vortex and Silversoft. 


alerts you to misloads, and lets you 
restart the tape from the point of 
interruption, without re-loading from 
the beginning. 


THE ONLY PLAIN PAPER, DOT-MATRIX 


RESO! SC Sem ca a aang ro ee a a mR T 


OFTWARE ORDER 


, : 
i 
PRINTER FOR THE TIMEX/SINCLAIR SYSTEM | Postage & handling 2.25 i 
Total 
-i ee lace cauidGnts add 5% tax 
BBN eat Mindware’s MW-100 gives you the | 
: oat oa ability to make hard copies i 
of programs, data, mailing i SPECIAL PRINTER OFFER - Retail value, $150-182.00 
lists, and screen | MW-100 printer - , 119.00 ' 
graphics. i Two software titles free: ar i 
Postage & handling 4.95 i 
: Total 
: (Mass. residents add 5% tax) i 
| Total enclosed is O check O money order i 
i Charge to O visa O Mastercard i 
i eather Volume discounts 
Expiry PAPEETE available to dealers i 
i Please Prit Torase t 2) and SCnOors: i 


Send more infoon: 


Name 
SPECIAL OFFER: Ordera MW-100 printer for $119.00 i Address L) Quickload software. 


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FREE; plus 5 FREE rolls of paper (comparable retail value, | city/statezip ______________ 1] MW-100 printer. 
$150-182.00). RE ee ee ee ee ee ee ee eee ee eee ee 
Thousands of MW-100’s have sold nationally at a retail price of SEND TO: Eagle Sales Co./SY 

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Improving, continued... 


P. Hargrave 
Tactile Feedback Overlay. $3.95. 

For ZX80/81, TS1000 or Microace. A 
clear vinyl keyboard overlay with holes 
over each key. Lets you feel your keys. 
Touch typing possible. Speeds entry of 
data or programs. Prevents missed keys. 
Adhesive backed for easy installation . 


Kaltek 
Shift Lock Module (SL-6) 
Kit: $17.46. Data for SASE. 
Enables one-finger keying via touch 


switch to suit user, on/off keyboard. 
Holds SHIFT active about one second, 
freeing one hand. Speeds keying; helps 
handicapped. Module, capacitor and LED 
fit inside all cases. Mailed First Class in 
USA, CAN, and MEX pp. 


E-Z Key 
E-Z key 60. $84.95 + $4 s&h. 

Large 60 key “tactile feel” keyboard 
plugs into same connectors as the exist- 
ing keyboard on your ZX81, TS1000, 
TS1500 or TS2000. TS1000 legends and 
graphics in three colors on the base- 


S IS YOUR i 
SINCLAIR WORKING HARD, 


OR HARDLY WORKING? 


If you've been looking for a better way to keep your 
Sinclair busy, the search ends with Graphicomp. 


We've selected more than 60 unique software 
packages designed specifically for the ZX-81/TS1000. 
Choose from the largest variety of 1K to 16K soft- 
ware available for education, programming, 
testing, and of course, the popular challenges 
and games. Write us for the name of the 


Graphicomp dealer nearest you. 
Dealer enquiries welcome. 


GRAPHICOMP 


U.S. order to: 


55 York Street, Suite 100, Toronto, Ontario M5J 1R7 
It’s time your Sinclair got to work. 


12 


molded moving key with alphanumeric 
characters; 8 automatic shifted keys, 2 
shift keys, numeric key pad, 5” space bar. 


KML Inc. 

Keyboard Audio Circuit. 

$12.00 plus $2 s&h. | 
The circuit emits a short beep when 

any single key is pressed. The circuit fits 

inside the ZX81 and does not require 

any soldering or cutting. 


Memotech Corporation 
Memotech Keyboard. $99.95. 

For ease of operation, the Memotech 
keyboard is a high quality standard type- 
writer keyboard, with TS1000 legends. 
The keyboard is cable connected to a 
buffered interface which is housed in a 
standard Memopak case and plugs di- 
rectly into the back of the TS1000 or 
other Memopaks. 


Redditch Electronics 
Keyboard 
£19 plus s&h. 

40 key keyboard with full travel keys. 
Labelled as the ZX81 in two colors. Fit- 
ting requires screwdriver only. 


Sinclair Place 
Keyboard. $55. 

Full sized. 3 7/8 x 9 7/8 x 1 1/4. Un- 
cased. No soldering required; just remove 
the Sinclair or Timex case and plug in 
wires. Repeat key included. From Haven 
Hardware. 


Keyboard. $88. 

52 Keys; 12 numberic pad which 
repeats 0-9, including cursors, full stop, 
and shift key. Fully cased. Computer is 
removed from its case and fitted inside 
the keyboard. Internal motherboard 
allows 16-64K RAM expansion inside the 
case. External port connector included. 
From dk’tronics. 


16K RAM. $39.50. 
Internal RAM expansion for above 
board. From dk’tronics. 


64K RAM. $98.50. 
Internal RAM expansion for above 
board. From dk’tronics. 


TS2000 Keyboard. $88. 
Similar to above keyboard. From 
dk’tronics. 


Flexible Cable. $19.95. 
Computer to RAM pack. From 
dk’tronics. 


The Software House 
Keyboards. 
Plans: $5. 
Plans and keyboard: $45. 

Complete EZ to follow plans to expand 
your system. 58 key computer keyboard 
ready to wire. 


SYNC Magazine 


NOW. A TS1000/ZX81 
PUSH-BUT TON 
KEYBOARD 
FOR UNDE 


RR EREE, 


cheap but 
efficient way of ironing out the TSlOO0/ZX8l's 
only real bug: its keyboard. The Filesixty 


and check that all the keys function. 


Buttonset offers 1. Make sure the original keyboard is clean 3. So all you do is remove the 
protective backing. 


Æ A full-travel calculator-type moving 
keyboard for only $19.50. 
m Installed in seconds. The peel-off 


adhesive backing means you just register into _ < iy seragesuepaas s $570 Poet central onvoor SION ASA 
osition and press. Cheques/money orders made payable to Filesixty Ltd. 
p p 
z No mESSy labels, dismantling or | Pieasesend me = oae ay Buttonset(s) | 
soldering. | at $19.50 each (inclusive of postage & packaging). 
m 3 groups of colour keys to pick out | ‘Totals BLOCK CAPITALS 
shift, numerals and newline. | Name 


m Precision moulded in ABS to match | Address 
your TSl000/ZX8l, with contrasting legends | 
for maximum legibility. | State 


Orders to Filesixty Ltd., 25 Chippenham Mews, London W9 2AN, 7i 
England. Tel: 01-289 3059. Telex: 268 048 EXTLDN G 4087. L mo U REEERE TA A 


SYNC 


== SSS SC 


l'i 
| 
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wi 
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USAT 


AARDVARK — THE ADVENTURE PLACE 


TRS-80 COLOR 


WE CARRY MORE THAN ADVENTURES!! 


MAXI-PROS WORD PROCESSING wen 
The easiest to use word processor that | 
know of. Has all the features of a major word 
processor (right and left margin justification, 
page numbering, global and line editing, single, 
double, triple spacing, text centering, etc.) at 
a very cheap price because we wrote it in 
BASIC. Includes 40 page manual and learning 
guide. Easily modified to handle almost any 
printer combination. Available on disk or tape 
for VIC20, COMMODORE64, and TRS-80 
COLOR computer. Requires 13k RAM an 
Vic, 16k EXTENDED on TRS-80 COLOR. N 
$19.95 on tape $24.95 on disk. We 


GENERAL LEDGER — Complete bookkeep- 
ing for a small business. Disk required. For 
Vic20 (13k), Commodore64, TRS-80 COLOR 
(16k EXTENDED). $69.95 (Send $1.00 for 
manual before ordering.) 


pate 

LABYRINTH — 16K EXTENDED COLOR 
BASIC — With amazing 3D graphics, you fight 
your way through a maze facing real time 
monsters. The graphics are real enough to 
cause Claustrophobia. 

Similar game for Timex/Sinclair 16k - hunting 
treasure instead of monsters $14.95. 


ADVENTURE WRITING/DEATHSHIP by 
Rodger Olsen — This is a data sheet showing 
how we do it. It is about 14 pages of detailed 
instructions how to write your own adven- 
tures. It contains the entire text of Deathship. 
Data sheet - $3.95. NOTE: Owners of TI99, 
TRS-80, TRS-80 Color, and Vic 20 computers 
can also get Deathship on tape for an addi- 
tional $5.00. 


Dealers— We have the best deal going for you. 
Good discounts, exchange programs, and fac- 
tory support. Send for Dealer Information. 
Authors— Aardvark pays the highest commis- 
sions in the industry and gives programs the 
widest possible advertising coverage. Send a 
Self Addressed Stamped Envelope for our 
Authors Information Package. 


COMMODORE 24 


VIC-20 


ADVENTURES — Adventures are a unique 
form of computer game. They let you spend 
30 to 70 hours exploring and conquering a 
world you have never seen before. There is 
little or no luck in Adventuring. The rewards 
are for creative thinking, courage, and wise 
gambling — not fast reflexes. 

In Adventuring, the computer speaks and 
listens to plain English. No prior knowledge 
of computers, special controls, or games is re- 
quired so everyone enjoys them—even people 
who do not like computers. 

Except for Quest, itself unique among Ad- 
venture games, Adventures are non-graphic. 
Adventures are more like a novel than a comic 
book or arcade game. It is like reading a par- 
ticular exciting book where you are the main 
character. 

All of the Adventures in this ad arein Basic. 
They are full featured, fully plotted adventures 
that will take a minimum of thirty hours (in 
several sittings) to play. 

Adventuring requires 16k on Sinclair, TRS- 
80, and TRS-80 Color. They require 8k on OSI 
and 13k on VIC-20. Sinclair requires extended 
BASIC. Now available for TI99. 


TREK ADVENTURE by Bob Retelle — This 
one takes place aboard a familiar starship and 
is a must for trekkies. The problem is a famil- 
iar one — The ship is in a “decaying orbit” 
(the Captain never could learn to park!) and 
the engines are out (You would think that in 
all those years, they would have learned to 
build some that didn't die once a week). Your 
options are to start the engine, save the ship, 
get off the ship, or die. Good Luck. 

Authors note to players — | wrote this one 
with a concordance in hand. It is very accurate 
— and a lot of fun. It was nice to wander 
around the ship instead of watching it on T.V. 


DERELICT by Rodger Olsen and Bob Ander- 
son — For Wealth and Glory, you have to ran- 
sack a thousand year old space ship. You'll 
have to learn to speak their language and 
operate the machinery they left behind. The 
hardest problem af all is to live through it. 

Authors note to players — This adventure 
is the new winner in the “Toughest Adventure 
at Aardvark Sweepstakes’’. Our most difficult 
problem in writing the adventure was to keep 
it logical and realistic. There are no irrational 
traps and sudden senseless deaths in Derelict. 
This ship was designed to be perfectly safe for 
its’ builders. It just happens to be deadly to 
alien invaders like you. 


Dungeons of Death — Just for the 16k TRS- 
80 COLOR, this is the first D&D type game 
good enough to qualify at Aardvark. This is 
serious D&D that allows 1 to 6 players to go 
on a Dragon Hunting, Monster Killing, Dun- 
geon Exploring Quest. Played on an on-screen 
map, you get a choice of race and character 
(Human, Dwarf, Soldier, Wizard, etc.), a 
chance to grow from game to game, and a 15 
page manual. At the normal price for an Ad- 
venture ($14.95 tape, $19.95 disk), this is a 
giveaway. 


Please specify system on all orders 


SINCLAIR/TIMEX 


TI99 


PYRAMID by Rodger Olsen — This is one of 
our toughest Adventures. Average time 
through the Pyramid is 50 to 70 hours. The 
old boys who built this Pyramid did not mean. 
for it to be ransacked by people like you. 
Authors note to players — This is a very 
entertaining and very tough adventure. | left 
clues everywhere but came up with some in- 
genous problems.: This one has captivated 
people so much that | get calls daily from as 
far away as New Zealand and France from 
bleary eyed people who are stuck in the 
Pyramid and desperate for more clues. 


MARS by Rodger Olsen — Your ship crashed. 
on the Red Planet and you have to get home. 
You will have to explore a Martian city, repair 
your ship and deal with possibly hostile aliens 
to get home again. 

Authors note to players — This is highly 
recommended as a first adventure. It is in no 
way simple—playing time normally runs from 
30 to 50 hours — but it is constructed in a 
more “open” manner to let you try out ad- 
venturing and get used to the game before 
you hit the really tough problems. 


eet eer oe SEENA 

QUEST by Bob Retelle and Rodger Olsen — 
THIS IS DIFFERENT FROM ALL THE 
OTHER GAMES OF ADVENTURE !!!! It is 
played on a computer generated map of 
Alesia. You lead a small band of adventurers 
on a mission to conquer the Citadel of Moor- 
lock. You have to build an army and then arm 
and feed them by combat, bargaining, explora- 
tion of ruins and temples, and outright ban- 
ditry. The game takes 2 to 5 hours to play 
and is different each time. The TRS-80 Color 
version has nice visual effects and sound. Not 
available on OSI. This is the most popular 
game we have ever published. 


32K TRS 80 COLOR Version $24.95. 
Adds a second level with dungeons and 
more Questing. 


PRICE AND AVAILABILITY: 

All adventures are $14.95 on tape. Disk 
versions are available on VIC/COMMODORE 
and TRS-80 Color for $2.00 additional. $2.00 
shipping charge on each order. 


ALSO FROM AARDVARK — This is only a partial list of what we carry. We have a lot of other games (particularly for the 
TRS-80 Color and OSI), business programs, blank tapes and disks and hardware. Send $1.00 for our complete catalog. 


TRS-80 COLOR 


AARDVARK 


w" 2352 S. Commerce, Walled Lake, MI 48088 / (313) 669-3110 ¢ 
A a Phone Orders Accepted 8:00 a.m. to 4:00 p.m. EST. Mon.-Fri. 
TIMEX/SINCLAIR 


$2.00 shipping on each order 


COMMODORE 64- 


NTE p; BAN, age 
SN af 


VIC-20 


Improving, continued... 


Suntronics Co., Inc. 
KD-81 Keyboard. $69.95 plus s&h. 

41 keys, shift on both sides, space bar. 
Black case of high impact plastic. 10.75 x 
7.25 x 2.125 inches. Key legends silk- 
screened in 2 colors. 


SAVEing and LOADing 


Abacus Electronics. 
Abacus Controller for TS1000. $24.95. 
Developed to eliminate tedious swap- 
ping of plugs when LOADing and SAVE- 
ing programs on cassette. Single switch 
selection of TALK, SAVE, CUE, and 
LOAD modes. Built in microphone speak- 
er for fast and reliable program naming 
and cueing. 


Abacus Controller for TS2000. $35.95. 

Developed to eliminate tedious swap- 
ping of plugs when LOADing and SAVE- 
ing programs on cassette. Single switch 
selection of SAVE, LOAD, and AMP 
modes. Built in amplifier and loudspeaker 
boosts sound output. 


AB Engineering 
Control Center (CC-1) 
$20 plus $2.50 s&h. 
Eliminates cable changing, aural trans- 


ducer permits accurate load level adjust- 
ments. Includes power switch, LED indi- 
cator, SAVE/LOAD switch, and LOAD 
monitor. Highest quality parts through- 
out. 


Stephen Adams 

The RZ1 tape controller 

ZX81 or Spectrum (state which) 
£25 Basic model; £30 two relay. 

The RZ1 allows control of the SAVE 
and LOAD leads as well as the tape motor 
for one or tape recorders. Relay isolation 
from the computer allows control of 110 
volts AC 1 amp from the unit. Also has a 
built in 5 bit port, (6 if only one motor 
relay fitted). Uses no RAM or I/O 
address, completely invisible! Outputs can 
be used for BANK switching (diagram 
provided). Very useful for word pro- 
cessing and data logging. 


Advanced Interface Designs 

Z-XLR8 

16K RAM and up. Cassette: $9.50 plus 
$1.50 s&h. 

A fast LOAD/SAVE program. Will 
LOAD and SAVE 6 to 10 times faster. 
Fast array variable LOADing and SAVE- 
ing independent of program. Fast binary 
data LOADing and SAVEing anywhere 
in RAM. Prompts. No hardware changes. 
Occupies less than 2K RAM. 


Z-XLR8 
16K RAM and up. Cassette: $19.50 plus 
$1.50 s&h. 

A fast LOAD/SAVE EPROM. Will 
LOAD and SAVE 6 to 10 times faster. 
Fast array variable LOADing and SAVE- 
ing independent of program. Fast binary 
data LOADing and SAVEing anywhere 
in RAM. Prompts. Simple hardware 
changes. Occupies less than 2K RAM 
between 14-16K. 


CAI Instruments Inc. 
CAI/ESF Mass Storage Device. $119.95. 
1- 2 drives. Menu driven; accessible 
through simple keyboard commands; uses 
small and inexpensive microcassettes that 
can SAVE and LOAD programs at 11000 
BAUD (compared to 250 BAUD on the 
TS1000 tape port). A 16K program can 
be loaded in less than 20 seconds. The 
CAI/ESF is used in conjunction with the 
CAI/0 board which allows the user to 
LOAD programs through the standard 
tape port and transfer them to the CAI/ 
ESF. 


Centronic Inc. 
Tape Loading Aid. $30. 

Load tapes the first time. Includes LED 
indicators of voice over, program loca- 
tion, record level, overload. Also provides 
earphone monitor of tape sound and reset 
switch for computer. Plugs in between 


FINALLY 


The Linguists Are Here! 


Announcing LINGO 1 software: 


e Two-way translator (e.g. German/English or English/German) 
e 16 lessons on nouns with articles, verbs, other words 

e Each lesson lasts 15/25 minutes 
e Words randomly selected to avoid rote memorization 


e Words randomly repeated when incorrectly answered 
e Cumulative percentage of correct answers 


e Over 350 words with their translations on each cassette 


e For ZX/TS with 16K 


15 W 780 Fillmore 


SOFTWARE 


aaz 


Elmhurst, Illinois 60126 
Programmer/Distributor inquiries invited 


YES , d like to improve my foreign vocabulary. 


Please send me... 


O Free new product information 
O English/ Japanese City 
O English/Portugese 
O English/Spanish 


Each cassette $15.95. Add $1.50 shipping and handling per tape. 
lllinois residents add 5% % tax. Allow 2-4 weeks delivery. 


O English/French 
O English/German 
O English/Italian 


May/June 1983 


Name 


Address 


Acct.# 


Signature 


TIMEX USERS 


OVISA OMC 


15 


Improving, continued... 


computer and tape _ recorder/power 
supply: No soldering or modification. 


Floppy Disk Systems 

The Floppy Disk Interface board is 
available packaged with various floppy 
disk drivers to the user’s specifications. A 
standard product will be available by mid- 
1983. 


Floppy Disk Interface 
Kit: $114; assembled: $149.95. 

Interface to your Shugart SA-400 or 
equivalent. 35 or 40 track (specify). DOS 
in 2732 ROM. Compatible with RAM 
packs. DOS commands include: 
INITIALIZE, DSAVE, DLOAD, NEWD, 
DIRECTORY, STAT, READ, WRITE, 
KILL, CREATE. Loads 8K program in 
10 secs.; saves 8K file in 20 secs. with 
verify. Plugs into expansion bus. Powered 
by computer. 


Cinevision Systems 
Loadstar. $45 plus s&h. 

Calibrated distortion free tape loading 
amplifier for all tape machines. Triple 
LED displays for low, normal, overload. 
Reliable program loading. Superior to 
“monitor only” units. Connects between 
tape player and computer. Long battery 
power design. 


10 Programs for the 1K 


Timex/ Sinclair 


Includes 3 video games, math and household programs, 
Las Vegas games and many others. Order No. P-1 


ONLY $2.95 


Data-Assette 

ZX 99 

Uses from 8192 to 10239. $150. 
Automatically controls up to 4 cas- 

sette recorders; has an RS232C Serial 

Printer Interface. Built-in USR Com- 

mands provides program control over 

the cassette decks and allows Program 

Listing or Tape to Tape Copy. User ac- 

cess to all 132 characters of ASCII. 


Sharp Cassette Recorders. $35. 

Dependable loading and saving of 
information. Automatic level control. 
AC/Battery operation. Most successful 
cassette recorder we have tried. 


Charles Drury 

ZXVER 

2K/16K RAM. Cassette: $8. Custom ver- 
sion for 32K/64K: $10. 

Self-running utility program to ensure 
your program SAVEd amd LOADed cor- 
rectly. ZX VER creates a 10 byte check- 
sum when SAVEing and verifies the 
stored code upon LOADing. Custom ver- 
sion order must specify location for the 
310 bytes. 


Fulcrum Products 
Loading Aid. $25. 

Removes guesswork from adjusting cas- 
sette recorder volume. Plugs in between 
computer and recorder. Red and green 


LEDs on optimum volume set. Red LED 
(only) on means volume too low. Yellow 
LED on means volume too high. Push 
button to reset K cursor: $2 extra. Ear- 
phone to monitor voiceovers: $3 extra. 


Gladstone 
ZX99 (D71). $149.95. 

Gives software control of up to 4 tape 
decks (2 for loading; 2 for saving); allows 
mixing of data files to update and modify. 
Has RS232C interface allowing direct con- 
nection to any serial printer using ASCII. 
Has its own 2K ROM with functions cal- 
led by USR; functions can be used in 
programs or immediate mode. 


IPS Fastload Monitor Program (Z61). 
$19.95. 

LOAD and SAVE up to 6 times faster. 
Package includes 2 programs: Keyboard 
Monitor and Fast Loader. Both reside at 
RAMTOP. Fast loader can be used in 
front of any fast saved tape to enable it to 
be fast loaded thus there is no need to 
load the monitor for each load. 


G M Harris 
CF81 Cassette Filter £10. 

Inserted between the ZX81 and cas- 
sette recorder during LOAD. A 
combination of filters and amplifiers to 
improve the recorded program signal for 
reliable LOADing. 7 x 5 x 2.5 cm. In- 


C ENTI PED E Listing $2.95 


Cassette $12.95 


Just like the famous Atari videogame. Uses machine 
code for fast action. Record high scores. Kill the 
centipedes and other insects before they kill you! 


Listing $2.95 


data-base 2X Listing $2.95 
Cassette $12.95 


Why buy separate programs for telephone numbers, 
mailing lists, appointments, etc.? data-base 2x will do it 
all! Cross-reference supports printer, etc. Use for any 
application. 


Listing $2.95 
Requires 16K cassette $12.95 
Order No. 001-A 


16 


Listing $2.95 
Requires 16K cassette $12.95 
Order No. 6-2 


Add 70¢ Postage. NY res. add 7% sales tax. If your not 
satisfied return for full refund. Orders shipped within 48 
hours. 


FROG SOFTWARE 


Box 95 
Glenmont, New York 12077 
(518) 465-6552 


SYNC Magazine 


TIMEX MAKES THE © 
COMPUTER, 
BUT WE MAKE IT TICK. 


If you own a TS-1000 or ZX-81 computer and want to bring out the power within it, you’ll want Memotech. From easier input to high 
quality output and greater memory, Memotech makes the add-ons you demand. Every Memotech peripheral 
comes in a black anodized aluminum case and is designed to fit together in “piggy back” fashion enabling you ——= 
to continue to add on and still keep an integrated system look. Petr rera” 


MEMOPAK RAM All Memopak RAMs are directly addressable, user transparent and are neither aoe 
nor paged. No additional power supply is required. 16K RAM BASELINE The 16K Baseline is our most 
economical way to add memory to your TS-1000. It is fully compatible with Memopak 16K and 32K RAMS 
to provide you with up to 32K or 48K of RAM respectively. 16K RAM The Memopak 16K RAM offers 
expansion capabilities through its “piggy back” connection and is fully compatible with Timex or 
Memotech 16Ks to give a massive 32K of RAM. 32K RAM The 32K Memopak enables you to execute 
sophisticated programs and store large data bases and like the 16K RAM is fully compatible with Timex’s or 
Memotech’s 16K RAMs to give you a full 48K of RAM. 64K RAM The 64K Memopak is powerful 

enough to turn your TS-1000 into a computer with capabilities suitable for business and educational use. It 
J accepts such BASIC commands as 10 DIM A (9000). _MEMOCALC Memocale, our ar spreadh! analysis 
software, enables TS-1000 users to perform complex number crunching routines with ease. With 
the 64K RAM a table of up to 7000 numbers with up to 250 rows or 99 columns can be specified. 
Quick revisions can be achieved by entering new data to your formula. 

MEMOTECH KEYBOARD For ease of operation, the Memotech keyboard is a high quality 
standard typewriter keyboard, with TS-1000 legends. The keyboard is cable connected to a buffered 
interface which is housed in a standard Memopak case and plugs directly into the back of the 
TS-1000 or other Memopaks. MEMOPAK HRG The Memopak High Resolution Graphics, with 
up to 192 by 248 pixel resolution, enables display of high resolution “arcade game” style graphics 
through its resident 2K EPROM, programmed with a full range of auias aroni; 
CENTRONICS PARALLEL AND RS232 INTERFACES 7 
Memotech’s Interfaces enable your TS-1000 to use a wide range of | | 
compatible printers. The resident software in the units gives the | 
complete ASCII set of characters. Both Memopak Interfaces provide lower case character capabilities and 
up to 80 column printing. The RS232 Interface is also compatible with modems and terminals. 
SEIKOSHA GP 100A PRINTER The Seikosha GP 100A uses a 5x7 dot matrix printing format with 
ASCII standard upper and lower case character set. Printing speed is 30 characters/second with a 


maximum width of 80 characters. The printer uses standard fanfold paper up to [Mail To: Memotech Corporation, 7550 West Yale Ave., Denver, CO 80227 
- y2 inches wide. The GP 100A is offered as a package including cable and | Code: bats Be hare 
7 interface. Other printer packages are also 16K RAM Baseline $49.95 i 
available through Memotech. ae a | 
| ORDER AT NO RISK. All Memotech 9 |= ae | 
products carry our 10 day money back | Memoar 19.95 | 
| guarantee. If you’re not completely | Keyboard with Interface 99.95 | 
satisfied, return it within ten days arid we “Section capis ae 7 
will give you a full refund. And every | per Gan 95 | 
Memotech product comes with a six | Printer Cable 1995 ' 
month warranty. Should anything be [P 100A Paii aT O o 
defective with your Memotech product, return it to us and we will repair or replace Sa E ee ee 
it free of charge. Dealer inquiries welcome. To order any Memotech product use TOTAL $ | 
the order coupon or call our toll-free number OQ / 662- 0949. | Alin got in US. dulas Pries and its sje w change it noice ! 
TS-1000 is a registered trademark of Timex Corp. che C MasterCard C Visa | 
FS FR RSH oats, DS Ee ei ge 
JGL SVC eee | 
CORPORATION ee) GSP cs 


| PAY ARMED hn act OY Be 
7550 West Yale Avenue, Denver, Colorado 80227, 303/986-1516, TWX 910-320-2917 PB ea 2 eek eae es Ie 3. ig State Up 


THE ZX Oe} 


COMPILER 


generates a machine code program from one written in 
an integer subset of Timex/Sinclar Basic 


commands/functions 


DIM 
FOR/NEXT 


-256 variables (two letter) 


LET : 

IF/THEN EGSA EA SNS 
GOTO 

GOSUB/RETURN -16 bit arithemetic 
PRINT 

LPRINT 


PLOT/UNPLOT -PRINT & INPUT in hex or decimal 
a 
P : ; 

FAST modulus function 
SLOW 
PAUSE -includes REM generator & code move 
RAND routines 
cor 

PY 
SCROLL -hi and lo memory versions 
AND, OR (28-32k & 12-16k) 
NOT 
SAR results: 
USR program speed close to hand 
RND coded. am size 7/3-% original 
PEEK aig ee 
INKEY$ 
MOD( te ) 
AT & TAB 


both versions 
on one cassette 


25.00 


THE ZX 
ASSEMBLER & DISASSEMBLER 


now al machine code. 
Assembler resides 26-32k, Disassembler 24-26k 
Allows hex or decimal constants, labels, origin, data & com- 
ments, source code in REM statements, object code 
anywhere. 


15.00 
(cassette) 
THE ZX 
SERIAL PRINTER INTERFACE 
plans and listing 


RS-232 ASC |l output thru MIC port. hardware cost about 
$10—280 bytes of machine code prints, characters, strings & 
listings. One connection within case. 


5.00 


Bob Berch 
19 Jaques St. 
Rochester, N.Y. 14620 


all prices include shipping ¢ NYS residents 
add 7% tax 
er 


SIMPLEX SOFTWARE 
INTRODUCES A NEW LINE OF QUALITY, AFFORDABLE 


AND RELIABLE 16K CASSETTE SOFTWARE FOR 
ZX81 and TIMEX/SINCLAIR 1000. 


Introductory Prices Good Until 8/31/83 
RECREATIONAL-PAC: .........sceseseeesees $1495 ....$9.95 
1. BIORHYTHMS - Computes and plots 4 weeks of your bio- 
rhythms 
2. ANIMALS - Popular artifical intelligence learning game 
PPT A eiccsd ieckcnccecncincacbeccathemeearare $I- «222 $9.95 
1. COMP-U-SKETCH - Computerized version of popular 
ETCH-A-SKETCH toy 
2. MICRO ORGAN - 4 octave organ music through your TV 
3. KALEIDOSCREEN - TV screen becomes a computerized ka- 


leidoscope 
EDUPÄC: eiaa aaea $995 ....$7.95 
1. MATH DRILLS - 4 programs with 4 to 5 levels and score- 
board 


2. COMPUTER AIDED INSTRUCTION - General purpose educa- 
tional program 


MATHSTAT-PACS.....essessssssssessessesees $10-95 ....$8.95 
1. STATISTICS - Computes mean, variance and standard 
deviation 


2. LINEAR REGRESSION - Computes regression coefficients 
and displays equation 
3. VECTOR MATH - Adds two vectors and provides resultant 
vector 
4.SIMULTANEOUS EQUATION SOLVER - Solves system of 
simultaneous equations 
FINANCE-PAC: ...........csssessessesseseseasees $9.95 ....$7.95 
1. CHECKBOOK BALANCER - Reconciles check register with 
bank statement 
2. NET PRESENT VALUES - Computes net present value of a 
series of cash flows 
3. AUTO LOAN ANALYSIS - Computes amount of loan and 
monthly payments 
HMOME-PAC? aise iicc csc ccsvnsccccstecccscccsacee $29- .- $19.95 
20 PROGRAMS - Best software value in America. All the pro- 
grams in the above packages plus: 


1. STAR INVADER - Mini space invader game with 1 invader 
2. MACHINE LANGUAGE MONITOR - Utility program enters and 
list hex code 
3. RENUMBER - Utility program renumbers BASIC programs 
4. 21 Page User’s Manual (Manual alone $2.95 - credited to 
_ future purchase of HOME-PAC) 
COMBO: -aiiai $855 ....$6.95 


Computerized variation of popular BOGGLE hidden word game 

program, with 4x5 game board (2 to 8 players) 
GUARANTEED 

All programs are supplied on quality cassette tapes which are 

guaranteed to load and run (defective software will be 

replaced if returned within 30 days) 


ACT NOW! CLIP and MAIL the COUPON BELOW! 


Mail to: SIMPLEX SOFTWARE, DEPT. A3, 
P.O. Box 792, New Brunswick, N.J. 08903 


O Please send me more information. O Dealer information 
Please rush my PRICE PRICE 
order UNTIL 8/31 |AFTER 8/31) QTY. TOTAL 


RECREATIONAL- $ 9.95 
PAC 


MATHSTAT-PAC LS 10 eee 
FINANCE-PAC ja o o 
HOME-PAC 19.95 | 2995 | | 

e 


HOME-PAC 
MANUAL 


COMBO 
Shipping & Handling - (Foreign orders $3.00) 1.50 
New Jersey Res. Add 6% Tax 

Total 


O Check O Money Order O VISA 
O Mastercard 


(<e) 
(82) 


Account No. Exp. 
Name 
Address 


City State Zip 


ell keep 
_ your Sinclair summing! 


ee AE Se et AE ROT IN 


o 


is cl te G cb rÀ oe ra wm | 
GD ġia ca Ge tm Ga ie Oe mm ea 


OUR $14.95 SINCLAIR AND TIMEX OWNER-PROTECTION SERVICE PLAN 


WILL SAVE YOU MONEY. 


Timex too! 

Typical repair charges for a 
Sinclair ZX81 can run from $25 or 
$50 up to the replacement cost of 
the unit. So why take chances? 
MicroSync will guarantee unlimited 
service for one year, parts included, 
at one low price. With return postage 
and handling paid. Plus our VIP 
treatment for fast turnaround. 

MicroSync’s experienced 
technicians are ready to service 
your ZX81 or Timex/Sinclair 1000 
with factory replacement parts. We'll 
return it promptly, and we'll quality- 
check your unit before it leaves our 


service center. MicroSync is THE Sinclair 


authorized Service Center. 


We made over 10,000 
Sinclairs tick last year. 

Sinclair equipment has a great 
reputation for reliability. But almost 
all computer equipment requires 
service at one time or another. 
We've been repairing Sinclairs ever 
since their first glitch. 


Your Sinclair computer is a 
remarkable assembly of electronic 
components, some unique to 
Sinclair technology. Our Sinclair 
personnel have been trained on, and 
service only Sinclairs. 


The fine print. MicroSync’s Maintenance Agreement covers all parts and service for 12 months 
after the expiration of original warranty. For units over 90 days old, coverage is for 12 months 
from the date of the Maintenance Agreement. Kits or modified units may require a surcharge. 
MicroSync may not repair units damaged by abuse or negligence. Liability extends to repair or 
replacement only. 


We have the experience it takes. 
We have the parts on hand. 

So act now! If your unit is less 
than 90 days old you can purchase 
our Owner-Protection Service Plan 
for only $14.95. 


f Mali Te: Mente T 


Mail To: MicroSync 
162 Marlboro St 
Keene NH 03431 


- Please send Maintenance Agreements for 
I the equipment listed below: 


ZX81 or Timex/Sinclair 1000 i 
Less than 90 days old 

(include proof of purchase) ......... $14.95 ea. l 
Ovr 90days old.. 3s cao $34.95 ea. 
16K RAM f 
Less than 90 days old i 
(include proof of purchase) ........ $12.95 ea. 
Over 90 days Old; : (..6 00.8. fen $29.95 ea. i 


i Total Enclosed.......... 
i Serial nos. 


i C check O w/c O VISA 
Card # 

j Name 
Address 


Exp. 


City State Zip J 
ka a mas Gis ie Di ns acs me ec 


MicroSync 


AUTHORIZED SINCLAIR SERVICE 


SINCLAIR/TIMEX USERS : 


NOW SYNERGISTIC OFFERS YOU THE ‘SMART™ CHOICE 


DESIGN 


THE SYSTEM LOGIC KBD-I 
‘SMART'™ KEYBOARD 
ENHANCEMENT FOR 
SINCLAIR/TIMEX 
COMPUTERS 


-~ SYSTEM LOGIC — KBD-1 


SPECIFICATIONS 


FEATURES 


e ‘SMART’ shift function 

e Tactile feedback 

e 59 keys (with left and right shifts) 

e Standard (QWERTY) typewriter format 

e Silk screen labels compatible with 
Sinclair/Timex keyboard 

e Compact design 

e Rugged yet attractive black anodized 
aluminum cabinet 

e Simple installation 

e Custom engineered for Sinclair/Timex 
computers 

e Auto-repeat function (fast/slow modes) 


MAIL ORDER TO: 
SYNERGISTIC DESIGN 
P.O. BOX 411023 
CHICAGO, ILLINOIS 60641 


SYSTEM LOGIC KBD-I KEYBOARD 


Shipping and handling (per unit) 
Money order or check 


E NAME 
ADDRESS 
CITY. 


Contact resistance: 202 @ 1mA 

Contact rating: 1.0V/A 

Contact bounce: <5.0mSec. 

Switch life: 5.0x10® operations 
typical 

Switch force: <9.0 oz. 

Switch travel: .015 in. 


*Illinois residents include 
6% sales tax. 


plus + 64K 
plus + color graphics $ 

plus + voice module 

plus + communications module 
plus + printer interface 


pluS+pac Shia 


You can have: 

e directly addressable, user transparent memory 
extension to a full 64K 

e high resolution color graphics up to 192 by 
248 pixel resolution 

e verbal communication with your computer 

e MODEM communications capability 

e Centronics Parallel or RS232 printer 

interface 


ALL FOR ONLY $99 PER FEATURE! 


They’re yours with the Plus + Pac 

booster. Buy the Plus + Pac (as pictured) 
for only $49.95, and then extend as you ¢ À 
please for just $99 each. pag” Fd 


You order at no risk with the Plus + Pac 
30-Day Money Back Guarantee and 12- 
month limited product Warranty. All prices are 
postpaid. Check, money order, or Visa/MasterCard 
accepted. (Charge card orders—include signature and expiration date.) 


Send your order to: Plus + Pac Systems Intemational, P.O. Box 10300, Chicago, Illinois 
60610. Or, for immediate delivery of charge card orders call (312) 951-7671 today. 


improving, continued... 


cludes cables, carriage, VAT or export 
postage. 


H & H Electronics 

Visi-Load Tape Load Moniter 

Any RAM. $13.95 plus $1.25 s&h. 
“Visi-Load” is a three step LED me- 

ter that allows monitoring of the correct 

tape loading level with just a glance. Our 

unit plugs inline between the computer 

and the tapedeck. No Soldering Re- 

quired. Complete instructions included. 


Intercomputer Inc. 
Qsave (PL7001) 
16K RAM. 

LOAD/SAVE a full 16K in only 29 
seconds (16 times faster). Simply plug the 
QSAVE amplifier/filter unit between your 
recorder and the TS1000; all leads are 
supplied. Then LOAD the QSAVE soft- 
ware before you LOAD a tape or key ina 
program. A data transfer rate of 4000 
plus BAUD compared with only 250 on 
the standard TS1000, works with 16-64K. 


Softbox. (PL7012). 

This revolutionary modular box gives 
instant and easy access to your favorite 
programs just by turning on the computer. 
Attaches to the back of the computer. 
Each of the 4 heavy duty connectors can 


May/June 1983 


hold one cartridge. The controller allows 
instant access to any of these cartridges 
by entering a simple code. Does not re- 
quire any additional power supply. Other 
peripherals, such as extra memory, can 
be attached on the back of the Softbox. 


Softbox Cartridges 

Most Intercomputer programs are 
available on solid state cartridges which 
plug directly onto the Softbox (up to 4 at 
a time) or onto the back of the computer 
(1 at a time). With the control cartridges 
you can perform different automatic func- 
tions as required at your home, office, 
laboratory or workshop. The cartridges 
eliminate the waiting for cassette-based 
programs to load. 


Katt’s Computers 
Back Up Copies 
16K RAM. Listing: $3. 

Make back up copies of programs. MC 
loading routine will stop any program 
after loading enabling the use of the save 
command. 


L & G Enterprises 
Level-Vu Prism 
$3.95 plus $1 s&h. 

The Level-Vu Prism lets you see the 
recessed tape counter or printer without 
moving from your seat; fits most record- 


KOTE JACK 


PREVENTS CRASHES AND 
NOISE, A MUST FOR SINCLAIR / 
TIMEX USERS FIELD PROVEN 
FOR 20 YRS 
NOW AVAILABLE % oz KIT 
$5.95 + POSTAGE 


EASY EYE 
FILTER © 


UNIQUE FILTER FIELDS BLACK 
ON OPTIC YELLOW, MAXIMUM 
CONTRAST! END EYE STRAIN! 
ELIMINATE HARSH BLUE EMIS- 


SION 
EASY TO TRIM 
10” X 12” KIT WITH FASTENERS 
$12.95 + POSTAGE 


STRIP DOWN 


PREVENTS RAM WOBBLE 
EASY NO MODS 
KIT COMPLETE $5.95 + POST- 
AGE 


MASTER CARD/VISA 
WELCOME 


THE COMMONWEALTH AGENCY 
3000 DOGWOOD TERRACE 
CHESAPEAKE, VA 23321 


ers; magnifies counter and printer num- 
erals. Specify if for viewing tape counter 
or printer. 


Vu-Load Volume Monitor 
$20.95 plus $2.50 s&h. 

The Vu-Load insures a program LOAD 
every time. It monitors tape output level; 
gives a positive SAVE indiction; detects 
blank tape without disconnecting cassette 
wires. No wiring required. Instructions 
provided. 


L-Monitor 
L-Monitor 
Kit: $17.50; assembled $23.50 pp. 
Multipurpose tape loading aid assures 
first time LOADs. Simple connections 
(included). Features extremely sensitive, 
reliable microammeter with sophisticated 
circuitry; adjustable. Compact and attrac- 
tive. Output for earphone, amplifier, or 
duplicating. Comprehensive instructions: 
normal use, stereo system LOADing, tonal 
balance, head alignment. 


Micro-80 Inc. 
Computer Grade Cassettes 

Computer grade cassettes produced 
by the leading manufacturer in the 
microcomputer industry. 100% Error- 
free and fully guaranteed! In use by over 
3,000 school districts and software firms 


21 


A TIS 1000 “PROGRAM” 


10 IF YOU OWN AT/S 1000, A GOOD VALUE, GO TO 30 


20 IF YOU DON’T OWN ONE, BUT ARE EXCITED ABOUT ITS CAPABILITIES 
AND WANT TO BE INFORMED, GO TO 30 


30 GOTO BOOKSTORE AND BUY THE T/MEX/SINCLAIR 1000 USER’S GUIDE, 
VOLUMES 1 AND 2 


Presenting another great value — 
The Timex/Sinclair 1000 Series 
by QUE 


Timex/Sinclair 1000 Timex/Sinclair 1000 
User’s Guide User’s Guide 


Whether you currently own or are considering 
buying the T/S 1000, you’ll find that these books 
have lots of information and are easy to understand. 
In short, they mean more value for your $ and more 
exciting uses of your computer. 


The books are not only informative, but often 
humorous, and are loaded with programs, 
illustrations, flowcharts, and alternatives for 
accomplishing the most with your T/S 1000. Volume 
2 gives information on accessories and games that 
have been developed for the Timex/Sinclair 1000. 
Both volumes contain several appendixes that cover 
a variety of interesting topics. 


The Best-Selling Timex/Sinclair 1000 Series also includes a quick-reference pocket dictionary and a 
computer games book, Timex/Sinclair 1000 Adventures: Timelost. Look for them in all bookstores and 
computer stores. 


You can also use the coupon below to order directly from Que or call us toll-free @ 1-800-428-5331 


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Timex/Sinclair 1000 User’s Guide, Vol. 1 @ $ 9.95 SPECIAL DEAL: When you order a complete 
_—S—STimex/Sinclair 1000 User’s Guide, Vol.2 @ $12.95 set, you get all four books 
_————S—sS Timex/Sinclair 1000 Pocket Dictionary @ $ 4.95 for only $29.95. 
_SsSTiimex/Sinclair 1000 Adventures: Timelost @ $ 5.95 Add $2.00 for shipping and handling on sets 

Total Retail Price $33.80 
Add $1.50 per book for shipping and handling Quantity 
Indiana residents should add 5% sales tax 
Name Address 
City/State/Zip Total enclosed $ 
Charge my LJ visa LJ Mastercharge L] Other (specify) Card # Exp. Date : 
Signature 


CJUIC ` 7960 Castieway Drive, Indianapolis, IN 46250 


NB. The memory 
of the TS2000 
simply plugs inside. 


TIMEX SINCLAIR 
TS1000, TS2000 


With our memory expansion add-ons, your Timex Sinclair 
can increase its capability over and over again. 


iio * No soldering x easy to fit x simply plug in 
4 * fully guaranteed x no loss of memory 
through wobble or white out. 


Sadiy TS1000 MEI6 $32.00 ME64$72.00 
Memory TS2000 ME48 $37.00 ME80 $79.00 


qÙ 
noi 

AND TS2000 SS1 SpeechSynthesiser $65.00 f A oS £ 
SOX 5A" x 13” es 
» x Make amazing speech effects with your Timex-Sinclair 

2000. * Specially designed for use with your TS2000. 
Just plugs in, no dismantling or soldering. * No power 

; * pack, leads, batteries or other extras. * Ample volume L & 
s i from built in loudspeaker, Manual Volume Control 

- on panel: Can be plugged in to existing hi-fi system. 


* Uses only one memory address. 


COMPUTER ONS. 


7-9 Thane Works, Thane Villas, London N7. Great Britain. 


ro 


Fos 
“Se 


L 
og 
; Ke 


N 


/ oy 


Lee 


Improving, continued... 


nationwide. Used by thousands of com- 
puter hobbyists. Shipped 24 per pack. C- 
05: 59¢ each; C-10: 69¢; C-20: 89¢; C-30: 
$1.19. Quantity discounts available. 


Microsystems Specialists, Inc. 
uSS Backup 
16K RAM. $14.95 plus $2 s&h. 

Allows user to make backups of favor- 
ite programs using only 1 tape recorder. 
Provision to make multiple backups. 


T-S Systems 
Disk-M. $25. 
64K RAM (In design for 16K). 

A multi-programming system tool pro- 
viding many capabilities of a disk drive at 
a very low cost. Features: Storing Multiple 
programs; storing Multiple Data Files 
separately from programs. Functions: 
SHIFT, TRADE, CYCLE, DIRECTORY, 
FETCH, KILL, WIPE, Line Renumber, 
Block Delete, Total Delete, MERGE, 
DATA Merge, REMfill and Line 
Address. 


Power Supply 
and Accessories 


Basco 
Improved Heat Sink $7.95. 

Machined from aluminum alloy 
which is 50% thicker and has over twice 


May/June 1983 


the surface area of the original part. No 
modifications are necessary and the im- 
proved heat sink is easily installed in 
place of the original in minutes. Guar- 
anteed to eliminate problems caused by 
overheating of the voltage regulator. 


Data-Assette 
Data-assette Power Supply. $19.95. 

Our very own high quality adapter. 
No fade or flicker, a full 6.75 Volts 650 
ma. Thumb switch to prevent wear 
and tear on 9V socket. Dependable prob- 
lem free extended use. 


H & H Electronics 
Clean Line Power Supply Regulator 
Any RAM. $15.95 plus $1.25 s&h. 

A pre-regulator that conditions the in- 
coming DC voltage from the ZX/TS 
power pack into the minimum required 
to operate the computer. This allows 
cooler operation, reduced system 
crashes, and extended computer life. 
Also included is a system reset switch to 
CLEAR the computer. Complete with 
full instructions. No soldering required. 


Power Line Control 

Any RAM. $9.95 plus $1.25 s&h. 
Provides control of the incoming DC 

Voltage to the computer via a on/off 

power switch with a visual indicator, 

and a pushbutton system reset that al- 


lows convenient system reset or power 
up/down. No plugging/unplugging of 
the power pack or cables, just press a 
switch. Full instructions included. 


M. C. Hoffman Co. 
In-Line Load Monitor. $12.95 plus $1.50 
s&h. 

Helps to LOAD prerecorded software 
from cassette every time. Instructions. 


In-Line Voltage Dropper. $12.95 plus 
$1.50 s&h. 

Lowers voltage so computer runs cooler 
(RAM pack, too). Instructions. 


Hurricane Electronics 
Power Line Filter/Suppressor Module 
(LFS-5A). $34.95 plus $2.50 s&h. 
Protects against pulsed, continuous and 
/or intermittent radio frequency interfer- 
ence which can cause malfunctions in 
sensitive electronic equipment. Also pro- 
tects against high voltage transients and 
surges such as those produced by light- 
ning, switching surges, and noise spikes. 
Includes power switch, pilot light, 5 amp 
fuse, and two protected outlets. 


SPS-2A Power Supply 
$19.95 plus $2.50 s&h. 

The SPS-2A is a heavy duty replace- 
ment for the standard Sinclair/Timex 
supply. Supplies up to two amps, enough 


23 


E bore. The Source for Computer Books 


Show Your Computer Who’s Boss 


with These Indispensable Guides! 


ROBIN JONES AND IAN STEWART 


TIMEX SINCLAIR 1000 
Programs, Games and Graphics 
Robin Jones and Ian Stewart 

em For the Sinclair 1000, ZX80 and ZX81 


Aisa Tor use wih the A clear, accessible, and humorous introductory 
guide to your computer. 


è Setting up your computer 

è Using Sinclair BASIC 

è Over 50 ready-to-run programs and games 
@ Programming for graphics 

@ Debugging techniques 

$10.95 paperback 


MACHINE CODE AND BETTER BASIC 


lan Stewart and Robin Jones 
for the TS 1000, TS 2000, Sharp MZ80B, MZ80K, 
Tandy TRS80, and ZX81. 


An introduction to structured BASIC programming and 
to Machine Code, the language of the Z80 microchip. 


Programs include: Machine Code routines include: 
è searching a stock list è a checkerboard display pattern 
è enqueuing and dequeuing data @ inverse video 

@ a complete word processor è addition and multiplication 


..and more © moving data in RAM 
...and even more! 


$11.95 paperback 


Birkhauser Boston, Inc. 


B. Dalton stocks a complete selection of 


oe computer books in 700 stores nationwide. 
aS i Check your Yellow Pages for the B. Dalton 
City ___________State ___________Zip ] Bookseller near you. 

Phone 

C Check Money Order Enclosed i People who know computer books know 
(J) VISA C MasterCard [ American Express 

Card No. = a Exp: Date i 

eke Vita ae a Į 

Please send $1.75 for postage and handlin 

Please add Kiiha iage Salos TAX $: B. Dalton Bookseller i 


ee, a be Sein 


AIR TRAFFIC CONTROL 
Cassette software for your 16K 
ZX81 or TS1000 


Meet the challenge of up to 24 aircraft speeding 
across your screen to 5 different destinations! 


No “safe” altitudes—every plane is your respon- 
sibility. You must identify type, heading and alti- 
tude and skillfully guide them through crowded 
airspace, while a real-time clock builds the pres- 


sure. 


Every game is different. 


Aircraft, ranging from a Cessna 152 to 
the new Boeing 767, enter your air- 
space whether you are ready or not. 


Over 3K of machine code means immediate 
response. Experience the tension as you race to 
avoid the controller’s nightmare—a mid-air colli- 


sion! 


Order AIR TRAFFIC CONTROL from: 


Powerplay Systems 
P.O. Box 752 
New York, NY 11377 


Send $14.95 (incl. s&h) (NY res. add sales tax). 
Allow 3-4 weeks for delivery. 


HELLO 

YE ay youre one sie sie) 

EEEL DDD DDR 
PODADOORs 


COMPU=-BOARD 


CONNECTOR 
16 K RAM 
64 K RAM 


COMPU -PAK 


2615 WAUGH Dr.,SUITE 295 
HOUSTON, TEXAS 77006 

24 HOUR PHONE ORDER 
Tel: (713) - 523 - 3691 


COME ON BOARD , JOIN THE PAK 
ORDER THE _ COMPUBOARD FROM Compu-Pak 


CBoard converts the Timex-1000 into a complete home computer 
system. Make a COMPUTING and CONTROL CENTER around 
your Timex~-1000. Applications include Memory Expansion, A/D 
D/A Wireless Thermostat & Security System.. Eprom Program- 
mer Music & Speech synthesis etc. 

CBoard provides fully buffered lines status indicators. SIX 
Connectors for great expansion FULLY COMPATIBLE with 
existing Timex-1000 Add-ons;on board 5 V 3 A supply 


( bare board ) 


COMPU-BOARD A& T ( without connectors ) 
COMPU-BOARD A & T ( with 6 connectors ) 


WIRELESS DIGITAL THERMOSTAT 

EPROM PROGRAMMER 

RS-232 INTERFACE 

TELEPHONE DIALER ( with TS-1000 directory) 
CENTRONICS PARALLEL PRINTER INTERFACE 


SHIPPING & HANDLING EXTRA, TEXAS RES. ADD 6% SALES TAX 
FOR MORE INFORMATION, ASK FOR FREE CATALOG 


TO ORDER SEND 


personal check, C.O. D. 
money order payable to 
COMPU-PAK 


Improving, continued... 


to run external memory, printer, I/O mud- 
ules, and other add-ons. Eliminates black 
bars and other problems caused by an 
insufficient power supply. Includes LED 
power on indicator. 


MS-4 Multiple Outlet Strip 
$19.95 plus $2.50 s&h. 

Helps keep your Sinclair work station 
neat and organized. Four AC outlets (3 
terminal), power switch, pilot light, and 
15 amp circuit breaker. Six foot cord. 


TA-3 Transient Absorber/Outlet Strip 
$29.95 plus $2.50 s&h. 

Protects your computer system from 
dangerous voltage spikes. Absorbs tran- 
sient and surges such as those produced 
by lightning, switching surges, and noise 
spikes. 3 protected AC outlets, power 
switch, pilot light, and 15 amp fuse. 


Integrated Data Systems 
Power Supply. $17. 

Additional power supply. 9VDC, 1A, 
CSA, UL approved. 


On-Off Toggle Switch. $2.24. 
Silences chirper. 


Reset Button. $0.80. 
Provides system reset without powering 
down chips. Complete with instructions. 


May/June 1983 


Computer improvements. $56.80. 

Installation with all parts and labor of: 
Audiograph Chirper, Auto Repeat Key 
module, Reset Button, On-off switch for 
chirper. 


Sensible Technical Solutions 
Easy Z Heat Eliminators (619). $5. 

Can you run your ZX 24 hours a day 
without overheating? Engineered heat 
transfer solution requires approx. 1 
minute to adapt to ZX. No modification 
to interior of ZX required. All material 
required is furnished. 


Support Systems One 
The Cooler. $11. 

The Cooler is a pre-regulator for the 
ZX81 and TS1000. Output rated at 1.5 
amps; input rated at 9-35 VDC. Comes 
fully assembled with connecting cable 
and jack. 


The Cooler Kit. $5.50. 

Includes all hardware needed to build 
the cooler pre-regulator for the ZX81 
and TS1000. Includes cable, plug jack, 
and diagram. Does not include case. 


The Protector. $39.95 plus $2 s&h. 
Stops glitches, system crashes, and 
erroneous data, due to noise or high 


voitage spikes on 120 VAC power line 
with the protector. Designed for the 
ZX81 and TS1000 with 2 AC outlets lo- 
cated on top for power supply to be reset 
without pulling plug. 


ZXPS/1. $29.95 plus $2 s&h. 

ZXPS/1 is a heavy duty power supply 
designed for the ZX81 or TS1000 fully 
regulated. Rated at 1.5 to 2 amps. Made 
to supply enough power for the ZX81 or 
TS1000 Computer and any add-on. 


The Sync-Lair 
Power Paw Power Function 
$19.95. 

Features plug-in unit, twice the size of 
its 9 V rechargeable battery, provides a 
Power/RESET switch, up to 15 minutes 
of battery back-up, and a power LED 
(Green for line, Red for battery). 


Unit. 


UPSystems 
UPSystems; NiCd Backup System. 
Compact NiCd powered backup sys- 
tem that kicks in automatically at the 
slightest drop in voltage coming from 
the power supply. Just plug it into the 
microcomputer and you are ready. In- 
cludes a Program Loading Monitor (to 
solve program loading problems), an 
On/Off/Reset switch, NiCd and addi- 
tional cords. Fa 


25 


Timex announces 


a new personal printer. 
Just fo 


9S 


Suggested 
Retail 


Now Timex brings you a printer to go with your Timex Sinclair 1000 ™ 
or Sinclair ZX81. 


The new Timex Sinclair 2040. 

32 columns wide. Two lines per second. With full graphics and text capa- 
bility based on a dot matrix print mechanism. 

The price: just $99.95. 


The TS 2040 operates silently in two different modes: 

C Full-screen printing with single-key copy command. 

L] Program-controlled printing mode allowing for custom control 
of the printing format. 

A printer that can give you a permanent record of your computer 
programming at a very affordable price. 


Just what you’d expect from Timex. 


TIMEX COMPUTERS 


© Timex Computer Corporation 1983 


Timex/Sinclair 1000 


r d w are 


H a 
16K RAM Pack $39.95 


16K Ram Packs (while they last) $39.95 
Direct from England 


Kayde Keyboard $74.95 


Full-size Keyboard from Kayde $74.95 
includes repeat key, easily installable 


Graphics ROM $59.95 


Graphics ROM Hi-Resolution $59.95 

The solution to the TS ZX-81. Fits inside the computer and replaces the 
ROM with graphics of 450 different types. The unit also-has space for 4K 
of additional ROM or 2K of Ram. 


Hi-Res Software $19.95 


Hi-Resolution Software from Kayde $19.95 or $49.95 pack of three. 
Peckman, Space Invaders, Centipede: Quoted the best moving graphic 
games on the Sinclair ZX-81. 


Printer Interface $99.95 


Printer Interfaces and Tape Controllers $99.95 each. 

Did you know that the TS 1000 and ZX-81 can use conventional 
printers? Now discover the real power of the computer. 

ZX-99 Tape Control of four cassette recorders and interface with any RS 
232 Serial Printer. Software select to read or write plus Word-process. 
ZX-98 Parallel and Serial interface board. Use one or both to enhance 
your computer’s capability On-line to a network or to another computer or 
to any printer with serial or parallel interfaces. 


Power Supply $19.95 


Power Supply $19.95 
Our very own product. ‘‘No fade and no flicker’’. 650 mAmps power . 


PLEASE RUSH MY ORDER TO: 


Name 
Address 


City TET 3 ean arian A ¢ POD as: EAA 


Charge To: VISAO Master O 
Account Number 
Expiration Date 


Signature 


Send to: Data-assette (sy-5) 
56 South 3rd St. 
Oxford, Pa. 19363 


Super-Market 


Sinclair ZX-81 


Inventory Control (16 to 64) $19.95 
Automatically expandable to 16, 32, 48, 64K. Allows the user to specify 
number of lines based on Ram Pack size. Up to 250 items with a 64K. 


Budget Analysis and Cash Flow Forecaster (16K) $19.95 
Home or office, brand new utility. Menu driven for user ease. Manages 
income, fixed or variable expenses or line of credit. 


Property Manager (16K) $24.95 

Business or personal, provides for any combination of 10 units 

in two buildings or two units in five buildings. Tracks rent expenses 
for twelve months. 


Comp-U-Share (16K) $24.95 

Personal home finance. Excellent program that allows the user to 
keep track of his/her portfolio. Stocks, bonds, funds, etc. Detailed 
User Guide included. 


Fantastic 1K Games 


Fantastic 1K Games $9.95 or two for $17.00 

Written in machine code by experts. 

Challenge l- Four different tests of skill. Start out driving at Riverside 
and end up with a War. 

Challenge Il- Arcade-Style games, fast action and entertaining. You will 
quickly be overcome with desire to win. Three different types of games 
to test your reflexes. 


Business Games 


Business Games Feature (16K) $14.95 each. 

You against the computer. 

Airline- Can you do better than Sir Freddie Laker? 

Restaurant- Can you serve good food and make money? 

Copy Shop- Find out if you can win before you invest. 

ZX/TS Dotman- This months special. Fantastic recreation of the famous 
arcade game. Fast moving and requires skill. Don’t miss it. 


NAME and CODE PRICE QTY. VALUE 
BEN S A ain E E EAS a 
A a a e e a 
PE NAE SENE TO N of ft 
a a E ma PT 
a a a a Te 


Shipping/Handling $4.95 
TOTALOROER E 7 Pa 


Data-assette has over 50 software programs in its library, and we 
are adding more each month. If you wish to see our catalogue or 
join our mailing list, just send $2.50 which will apply towards your 
first order. 


Information and product spec sheets may be obtained by mail, or 
phone our HOT LINE 800-523-2909; in Penna 215-932-4807. 


data-assette 


RAMs, ROMs, 
and EPROMs 


Stephen Adams 
RAM Pack Anti-Wobble. £6. 

A metal clamp that completely elimi- 
nates RAM pack wobble. It includes the 
capacity for printer and other equipment. 
No screws or glue required and com- 
pletely removeable with no trace. No 
soldering or electrical experience neces- 
sary to fit. Cheaper than ribbon cable and 
more reliable. 


Apropos Technology 

Sin 16 

$35 pp. Visa/MC. (805) 482-3228 (24 
hrs.). 

SIN16 a 16384 byte RAM for the 
ZX81 or TS1000 computers. Fully 
compatible with all Timex/Sinclair 
products. Efficient design allows SIN16 
to use little power which leaves more 
power for other attachments and re- 
duces heat build-up. Its gold-plated 
heavy-duty connector disallows 
“glitches” and the resulting program 
losses. Complete with a manual, self-test 
program, display case, 10 day return 
privilege and 6 month warranty. 


Byte-Back Co. 
16K RAM Pack (M-16) 
Kit: $59.95. 
Wired and Tested: $69.95. 
M-16 blank PCB: $19.95. 
Stacks the M-16 with your Sinclair 
RAM pack or with other M-16’s. 


64K RAM Pack (M-64) | 
Kit: $119.95. 
Wired and Tested: $129.95. 
M-64 blank PCB: $19.95. 
Plugs directly into your computer; 
allows use of printer; no extra power 


28 


supply needed; area from 8-16K can be 
switched out in 2K increments for mem- 
ory mapped peripherals, PROMs, etc. 


Comprocsys, Ltd. 
ZX.Aszmic ROM. $49 (incl. s&h; special 
USA price). 

A plug in replacement ROM for the 
Basic ROM. Redefines the hardware and 
transforms it into an assembly language 
programming unit. Offers: Full Screen 
Editor: 16 shift keys give a word processor 


-feel to control programming. Multi-file 


System: Declare as many files as you want 
and they are handled by the Operating 
System. Total Assembler: Full Z80 mne- 
monics. Powerful Debug: All the usual 
commands and more. Hi-Res Graphics: 
255 x 144 resolution under program con- 
trol. And much more. Write for details. 


External Board. $15. 

Board with EPROM programmer, room 
for 8K EPROM, centronics and RS232 
interfaces, and more. Write for details. 


Data-Assette 

16K Econo Tech RAM Pack. $44.95. 
Budget model 16K RAM supplied 

without case, absolutely no other dif- 

ference. Fully guaranteed. 


Kayde 16K RAM Pack. $49.95. 

Kayde 16K RAM Packs comes fully 
cased and are of course, plug compat- 
ible. Designed specifically for the 
TS1000 and the ZX81. Proven reliabil- 
ity. Does not overheat and will not lose 
memory. 


Downsway 16K RAM Pack. $49.95. 
Downsway 16K RAM Packs are fully 


Extending Your Computer 


cased and simply plug into the rear port 
of the computer. Needs no extra power 
supply and is compatible with all acces- 
sories for either the TS1000 or ZX81. 


Jigsaw 32L RAM Pack (RP04). $99.95. 

This stand alone 32K RAM Pack will 
upgrade your unit to a full 32K from the 
start. Plug compatible with our 32K 
Plus to upgrade to a 64K. LED indicates 
“Power On.” 


Jigsaw 32K Plus (RPO2). $109.95. 

Designed specifically for the TS1000 
and the ZX81, the 32K Plus operates in 
tandem with a 16K to provide up to 48K 
RAM. Plugs directly into the computer 
rear port and is compatible with the 
Data-Assette ZX99. LED indicates 
“Power On.” Uses the computer’s power 
without modification. 


ZX-Panda Expansion Module. $44.95. 

Plug-in module easily installed into 
the existing 16K Panda case, extending 
the memory to 32K. 


Jigsaw 64K RAM Pack (RPO3). $149.95 

Specifically designed for the TS1000 
and the ZX81. Plugs directly into the 
rear port of the computer. 64K Bytes of 
RAM extends the memory by 56K. 
LED indicating “Power On.” Uses 
computer’s power, no additions nec- 
essary. Single board design for reliability 
and economy. 


ZX-Panda 

Expandable 16K RAM Pack. $55.95. 
Contoured case fits snugly against the 

rear of the computer for a sure fit. LED 

indicates “Power On.” Easily expand- 


SYNC Magazine 


GET THE VERY BEST 'TS1000 PROGRAMS 
NOW, DIRECT BY AIR FROM ENGLAND 


SOFTWARE SUPERMARKET 


In England, there are hundreds of programs for the 
ZX81/TS1000. We started Software Supermarket to sort 
out the rubbish from the all-time great programs, to make 
it easy for our customers to buy the best without wasting 
their time and money on the rest. 

And we now have satisfied customers in 26 countries, 
suprised by our fast delivery, and all praising our free 
selection service. It’s impartial, we produce no programs 
ourselves, and it saves you $$$'s on postage and 
mistakes. 

And it's fast. Orders usually despatched within 48 
hours, by first class air mail only. Full detailed catalogue 
free with every order: or send $1.00 bill for catalogue only. 


ALL PROGRAMS NEED 16K RAM 


Our 1983 best-seller. Take the 
BLACK CRYSTAL graphic adventure of your life. 
Figure out the whole 100K of program as it loads in 7 chapters from two 
thrill-packed cassettes. Real-time monster battles. Illustrated 
instruction manual. Big presentation box. (Carnell) $22.00. 


“Fantastic 48K graphic adventure...animated, 
TRADER original, entertaining”. (Sinclair User) Travel your 
spaceship around 6 planets, trading with the natives, as this 48K game 
loads in 3 chapters. 25-second test load. Beautiful graphics show off 


your TS1000. (Pixel) $25.00. 


ew, Outstanding...graphics second only 
3D DEF ENDER to the arcade game” (ZX Computing) 
Watch through your spacecraft window as the 3D aliens attack. 
On-screen forward radar, plus altimeter, proximity meter, number of 
shields, score. Use the keyboard as a joystick. Alter the speed of your 
ship - or of the aliens. (Greye) $15.00. 


Coming up fast in the charts! The first - and 
F ROGGER still the best - version of the famed arcade 
game. Moving cars, logs, diving turtles, alligators - and watch for the 
snake on the bank! Enchanting graphic frogs. On-screen score, High 


Score, timing. (DJL) $18.00. 


“Just the sort of program to impress your friends. 
MAZOGS One of the tiny minority of programs which every 
ZX81 owner should possess”. (ZX Computing) Such stunning graphics 
_ that you'll really believe, you're running through the maze, sword in 
hand, finding treasure, questioning prisoners and killing mazogs. As 
you get better, it gets harder: 3 game variations. A best-seller. 
(Bug Byte) $22.00. 


“One of the best Sinclair 
WIN GED AVEN GER games so far ... covers all 
the stages of the arcade original” (Popular Computing Weekly) 3 
Attack Waves: 7 play levels on this exciting ‘PHOENIX’. Blast the 
eggs, shield yourself against smart bombs ... and wait for the Winged 
Avenger. Probably the fastest ZX81 game. (Work Force) $15.00. 


“Absolutely fantastic ... an adventure 
p IMAN IA enthusiast's dream” (Computer & Video Games) 
“The best adventure game we have reviewed” Sinclair User) A 
wonderfully witty and involving adventure that has got lots of rave 
reviews. Meet the Pi-man, discover his secrets - AND WIN THE $9,000 
GOLDEN SUNDIAL OF PI if you're first! (Automata) $22.00. 


“A fast and interesting game ... has all the 
ZUCKMAN addictive features of the original” Sinclair 
User). The first authentic TS1000 Pacman. All machine-code. 4 
independent ghosts. High Score and Hall of Fame. (DJL) $18.00. 


“The graphics are 
3D MONSTER MAZE incredible ... truly the stuff 
of nightmares” (ZX Computing). “Undoubtedly one of the best TS1000 
programs available ... brilliant” (Popular Computing Weekly). Until 
you ve seen the full screen 3D tyrannosaurus chase you through his 3D 
maze, you won t believe it either! The same maze each time - or anew 
one. You choose. (Greye) $15.00. 


“Fast becoming the standard” ZX Computing). 
CHESS II “The strongest Chess program” (Pop. Comp. Wkly) 
All legal moves: 32 opening moves: 7 play levels - 4 respond within 
competition time limits: SAVE game: PRINT board or game history to 
printer: position analysis for solving chess problems. Fantastic! (Artic) 
$25.00. 


“The best one that I have seen on the market ... very well 
PILOT written” ZX Computing). Brilliant flight simulation 
program, written by a qualified private pilot. 7 modes, including 
Autopilot demo. Learn to take-off, land and direction-find from the 
safety of your TS1000. (Hewson) $18.00. 


“Recommended without reserve ... a superb 
OTHELLO opponent” ZX Computing) The great 19th 
Century power game now in its best TS1000 form. Try to surround your 
opponent and capture his territory. There are millions of different 
games - but each must end in just 60 moves from each player. 9 play 
levels. As challenging as chess. (Mol) $20.00. 


MAIL TO: SOFTWARE SUPERMARKET, 87 HOWARD'S LANE, 
E LONDON SW15 6NU, ENGLAND. 


a (If you do not wish to cut this magazine, write your order out carefully on plain 
p paper and quote this number:SYN 1) 


| I enclose my check/money order for $........ 
g Supermarket. NO CREDIT CARDS. 
Use block capitals. If we can't read it, you won't get it. 


made payable to Software 


DIRE Tn ee eed ete Mice ce aT Gh te SN cs ah CR 


PROGRAM 


BY FIRST CLASS AIR MAIL ONLY. ADD 
$1.00 FOR EACH PROGRAM ORDERED. 


SOFTWARE SUPERMARKET 
87 HOWARD'S LANE, LONDON SW15 6NU, ENGLAND 


L Telephone: 01-789 8546 (24 hours: no credit cards) 
ee ee 


Extending, continued... 


able to 32K with simple plug-in module 
that fits inside the existing case, no tools 
or soldering needed. Allows for inexpen- 
sive upgrading at any time. 


Jigsaw 16K RAM Pack 
RPO1. $49.95. 

Designed specifically for the TS1000. 
Plugs directly into the rear port of the 
computer, and can be used with our own 
Jigsaw 32K Plus to upgrade to 48K! 


LED indicates “Power On.” No addi- 
tional power requirements. 


DCP Microdevelopments Ltd. 
DCP P/A/C Packs. From £20. 

P-Pack gives 4K CMOS RAM. A set of 
packs giving ZX81 memory, control and 
analogue interfaces. The P-Pack plugs 
into rear of ZX81/TS1000 and gives 4K 
of extra CMOS RAM plus I/O Port. The 
Analogue Pack or Control Pack onto the 


-rear of the P-Pack. Cased and assembled. 


SEA WAR 
FOR ZX81 


This game is designed for one or two players. Each player has three submarines. As a certain 
number of points are reached, bonus submarines will be given. When the game is going on, the 
higher the score you get, the more that hostile features will appear on the screen. 


The features which appear on the screen are as follows: 


Submarine, Warship, U-boat and Helicopter. 
Submarine 


This feature is under your own control and is loaded at the left hand side of the screen. The keys 
‘9’ and ‘0’ are the firing buttons for the upward missiles and forward missiles respectively. 


The submarine can be moved in four directions; it can move upwards and downwards by 
pressing keys ‘7’ and ‘6' respectively. In order to move forward, you press key ‘8’ and it will draw 
back to its previous position when you release the button. Also, the submarine can be moved 
diagonally upwards or downwards by pressing both keys ‘8’ and ‘7’ or keys ‘8’ and ‘6’ respective- 


ly at the same time. 


U-boat 


This is the hostile submarine: It drifts under the sea level randomly, from right to left. Missiles are 
fired as it approaches your submarine. Destroying a U-boat scores 20 points. 


Warship 


This is the enemy destroyer which will release bombs diagonally as it drifts on the sea surface 


from right to left. 


The destruction of a warship is done by either firing a vertical missile or, when the submarine is 
just under sea level, by pressing keys ‘7’ and ‘0’ which release a horizontal missile. Otherwise the 
missiles will just pass under the ship bottom. Each destruction of this feature scores 50 points. 


Helicopter 


As you reach a certain score, helicopters appear on the left hand corner of the screen; they drop 
vertical bombs as they hover above the submarine. To destroy the helicopters, vertical missiles 
can be fired by pressing key ‘9’. Each helicopter destroyed scores 100 points. 


*New Game—ADDER—Arcade-type game. 


Shoot the numbers as they pass across the screen, but watch your total. 


Each game $9.95 plus $2.00 postage/handling 
Distributor Inquiries Welcome 


Pandai È Software, 


51 Elgin Street, Shelton 
Stoke-on-Trent ST4 2RD, England 


30 


Down East Computers 

RAM chip 6116P-3. $11.95 plus $3 s&h. 
Static RAM, (2K x 8). With instructions 

for upgrading 1K ZX81 to 2K. 


EPROM Services 
8K EPROM Board. $31. 

Allows up to 8K of EPROM or RAM in 
2K blocks to be added in the 8/16K ZX81 
memory map. Supplied with EPROM I 
which contains 40 toolkit type routines, 
e.g., scroll up/down/left/right, free mem- 
ory, renumber program length. A range 
of 2K EPROM S to fit this board are avail- 
able at £10 each: Rapid LOAD/SAVE, 
MC Monitor, Disassembler, Graphics. 


I/O Board (Port). $25. 

A 32 line I/O board. Port mapped to 4 
absolute locations. Port A has 8 LED 
indicators. Port B has 8 outputs. Splits 
into 2 ways each so one instruction can 
be used to switch between two peripher- 
als. Port C is uncommitted. A status indi- 
cator ($9) gives a 16 LED indicator of the 
state of Port B. A precision D/A board 
($15) fits Port C. 


Graphics Generator. $39. 

A peripheral enabling alternate char- 
acter sets to be used and printed either 
from EPROM or UDS in RAM. 4K of 
EPROM is supplied containing 4 char- 
acter sets and routines to define print, 
copy, LPrint, and switch between char- 
acter sets. A further 2 x 2K of RAM or 
EPROM can be added. 


Expense Cutters Products, Inc. 
Crash Guard 
$19.95 plus $1.50 s&h; Visa/MC. 

An attractive, professional solution to 
the problem of crashes from accidental 
RAM pack jiggle. Adds a good solid feel 
to your computer. Installation takes less 
than one minute. 


Gladstone 

RAM Packs 

16K RAM (G16). $49.95. 

64K RAM (G64). $149.95. 

Coming: 32K RAM (G32). $99.95. 
Reliable memory units that will not 

“crash” at critical moments. Made in 

USA, metal casing gives better shielding, 

quality edge connector, snug fit to back 

of computer with no “wobble,” 6 month 

warranty. 32K RAM designed to stand 

alone or piggyback with the 16K unit to 

provide 48K. 


Memotech’s Memopak Range. 
Memopak 64K (A64). $179.95. 
Memopak 32K (A32). $109.95. 
Memopak 16K (A16). $59.95. 


Memic 
CRAMIC-81 (C12). $179.95. 
A 16K RAM pack using CMOS tech- 


SYNC Magazine 


ZEBRA JOYSTICK ADAPTOR 


Allows you to connect any Atari compatible joystick to your ZX81 or TS1000. 


8 DIRECTIONS 4s : : 
+ FIRE : EXPANSION 


* 
CONTROL (WN) ooo CONNECTORFOR 6 JOYSTICK GAMES $9.95 


PRINTER ETC. ATARI JOYSTICK $6.50 


ADAPTOR $19.95 
SIMPLY 


PLUG IT The ZEBRA Joystick Adaptor comes 
IN. assembled and tested with simple 

instructions to make joystick 
versions of most action games. 
Use your own Atari compatible 
joystick or add $6.50 for a 
genuine Atari Joystick. 
15 DAY MONEY BACK 
GUARANTEE 


ONLY 


$1 9.95 EXPANSION 


WITHOUT SPEAKER CONNECTOR 


$24.95 


WITH SPEAKER 


e Add amazing sound effects to your games. f ; | ZEB RA LIG HT PEN 


e Easy to program in BASIC. b ; ; 
e on 8a j o e Fun to experiment in BASIC 
° > mo sottw ; = : 

Assembled and tested, with De e Complete package includes: 


AMAZING A NAL EA -Light Pen 
| 1 -Computer Interface Module 


SOUND EFFECTS ) oo” SPEAKER 7 =) -Demo Program Listings 
MODULE [es e Assembled & Tested 
! ORDER C109 $24.95 


PROTOTYPING? 
EXPERIMENTING? 


C111 
UNIVERSAL 
PATTERN FOR 
IC’S, CAPS, 
ETC. 


3D 
MONSTER 
MAZE 


C113 
$14.95 


C102 BYTING DEEPER INTO YOUR TS1000 ..... $12.95 
C103 NOT JUST 30 PROGRAMS FOR THE ZX81 .. $ 9.95 


C104 COMPLETE T/S BASIC COURSE ; C112 
; PIGGY BACK 


RAM OR OTHER 
PERIPHERALS 


C110 
ALL SIGNALS 
LABELED 


THE BEST BOOKS 


GOBBLE 
MAN 


C114 =< ee A Hardware Manual C110 Keyed & Labeled ZX Connector $5.95 


$14.95 AM __ C111 Universal Prototyping Board . . $9.95 


C107 THE INS & OUTS OF THE TS1000 & ZX81.. $14.95 C112 Expansion Connector 


IMPORTANT! All ZEBRA prod 
can be piggybacked in ang arder: T ON NE Order Toll Free 
pr: printer, etc. will plug ZEBRA HARDWARE. (21 2) 296-2385 9.5 EST 800-221 -091 6 


Z = ‘ Á ADD $2.00 PER ORDER 
! FOR SHIPPING. 
R R A S S f= M S l N C WE ACCEPT VISA, MASTERCARD, 
5 a CHECKS, M.O. 


C.O.D. ADD $3.00 EXTRA. 
78-06 Jamaica Avenue, Woodhaven, New York 11421 OVERSEAS, FPO. APO ADD 10% 
DEALER DISCOUNTS AVAILABLE. 


Extending, continued... 


nology to store data almost indefinitely. 
Loads almost instantly with virtually zero 
chance of error. Requires only a tiny 
amount of power supplied by a lithium 
battery (10 year life) to retain data in 
standby mode. Computer supplies power 
for active mode. Behaves like an ordinary 
RAM pack, but it can be powered down 
and removed. Ordinary RAM pack can 


be simultaneously connected. 


Memic 
Memic-81. 
2K Version (C10). $59.95. 
4K Version (C11). $69.95. 

Accessory with 2K or 4K CMOS mem- 
ory. Allows user to write and store Basic 
or MC programs for a minimum of 5 
years even with power disconnected. Pro- 
grams load almost instantly. Especially 
useful for business or engineering appli- 
cations. Resides in the 8-12K area of 
memory. Can be used with other RAM 
packs. 


Extend your ZX81/TS1000: 
Add Memory that wont Forget! 


~ ADD YOUR OWN SYSTEM UTILITIES 


~ BUILD UP A LIBRARY OF MACHINE 
LANGUAGE SUBROUTINES 


~ UP TO 8K NONVOLATILE RAM 


vy USE HM6116LP CMOS RAM $; 
OR 2716/2732 EPROM 


~ COMPATIBLE WITH 
16K RAM PACKS 


an" 
tek Pe Cn ar eee S A ar A A EN 
ws Po an 


PB READ THE REVIEWS: 


s29% 


plus $1.95 shipping and handling 


What a super product!...conceived and executed very nicely...and with quality components. 


(SYNTAX QUARTERLY Winter 82) 


8K Nonvolatile memory is a gem! It has so many possible uses...| recommend this board most heartily. 


(OKLAHOMA S.U.G. Newsletter 1/3) 


We found the documentation to be far superior to that (of) most hardware we've received. 


(S.U.N. Newsletter Nov/Dec 82) 


For versatility this is even better than an EPROM...ranks quite high on the list of “must-haves”... 


INTRODUCTION 


This memory board is designed to fill the transparent 8K 
block of memory (from 8 to 16K) in a ZX81-16K system. 
This area of memory is an ideal place to store, either per- 
manently or temporarily, machine language routines or 
data which are to be used by the BASIC system. 


A sample display routine, a program—merging routine, 
and procedures for storing utilities on tape are included 
with the kit. 


The use of HM6116LP 2K CMOS RAM memory IC’s with 
their own reserve power supply means that routines stored 
in the RAM are nonvolatile — the RAM retains its memory 
even when the ZX81 is switched off or reset. Moreover, be- 
ing RAM, the routines you store in the memory are easily 
modified. The lithium cell supplied with the, board will main- 
tain sufficient reserve power for almost ten years. 


(SYNC Magazine Mar/Apr 83) 


ASSEMBLY 


Complete step-by-step instructions in a 20 page manual 
make assembly of the board easy. Construction takes be- 
tween two and three hours. The kit (pictured above) is 
complete with a silkscreened solder-masked printed cir- 
cuit board, all capacitors, resistors, transistors, sockets, 
connectors, integrated circuits, and the lithium cell. The 
board is supplied with one 2K CMOS 6116LP-3 RAM — it 
will accomodate three more for a total of 8K. 


Complete kit with 2K EGE oe Sy e ea ee 
Additional three 6116LP-3 yA, whe oat AAA $16.00 
Bare pc board & manual ee _. $13.05 
Assembled & tested with 2K _. $44.95 
Assembled & tested with 8K $59.95 
Shipping & handling per order... _.$ 1.95 


Send check or money order to the address below. 


HP HUNTER, 1630 FOREST HILLS DRIVE, OKEMOS, MI 48864 


32 


Memic 
ROM-81 (C13). $34.95. 

A 2K-8K ROM/EPROM Unit. Enables 
user to read useful routines and com- 
monly used information, stored in U.V. 
erasable, programmable ROM. Supplied 
without EPROMSs. Accepts either 2716 or 
2732 EPROMs to allow up to 8K of 
memory in 2K increments. Separate 2K 
and 4K decoding is link selectable. Sock- 
ets decoded to lie within 8K and 16K in 
the TS1000. Additional circuits for slow 
EPROMs. 


BASICare Micro System. 

A series of stacking modules allowing 
the user to select the expansion he needs. 
Includes: Persona, Minimap, RAM 16, 
RAM 64, Drom, Toolkit, Pericon a, 
Pericon b, Pericon c. Listed by category 
in this issue. 


Persona (B20). $59.95. 

An interface module to enable Organic 
Micro to grow. Buffers in all the signals 
from the expansion port via a ribbon 
cable. Talks to other modules via 64-way 
Organic Bus configured to fit onto the 
given ZX81 Memory Address Map. 


Minimap (B21). $59.95. 

The key module for adding large 
amounts of memory although a few mem- 
ory modules can be used without it. 
Extends the 64K of address space up toa 
possible 1Mbyte. Organized into vertical 
64K pages. Up to 16 pages. Can be de- 
fined from within the program. 


RAM 16 (B23). $49.95. 

Add 16K RAM. On board address de- 
coding permits simultaneous use of many 
RAM 16 modules in conjunction with 
Minimap. 


RAM 64 (B24). $149.95. 

64K RAM arranged as 4 blocks of 16K 
all of which can be used simultaneously 
under the control of the Minimap. 


DROM (B25). $74.95. 

Ultra low power memory backed by 
rechargeable battery for non-volatile stor- 
age of programs and data. Valuable for 
saving programs under development or 
often used routines or data. Makes cas- 
sette saving and loading unnecessary. In- 
dividual 2K blocks can be protected 
against accidental overwriting. 


Pericon a (B27). $54.95. 

A general purpose, user programmable 
device with 24 lines of I/O. Up to 4 can 
be used simultaneously allowing basic 
I/O, strobed I/O, and bidirectional 8 bit 
data transfer with handshakes. 


SYNC Magazine 


or any other Sinclair computer, 

you've probably discovered that 
the big microcomputer magazines 
cover only the bigger computers. 
Where can you find helpful articles on 
the Sinclair? In Sync! 

Sync is the one magazine that’s 
written exclusively about Clive Sin- 
Clair’s marvelous inventions, the Sin- 
clair Computers. And it’s the one 
magazine to read if you want to get 
more from your Sinclair. 

You'll find program listings for 
games, helpful programming tech- 
niques, hardware upgrades, math and 
science programs, news of new prod- 
ucts for the Sinclair—in short, every- 
thing you need to use and enjoy your 
sinclair to the fullest. 

In just two recent issues, for exam- 
ple, we covered: 

O Putting a Reverse Character in a 
string 
O How to Double Your Memory 
O Least Squares Data Analysis With 
the ZX80/81 
O Space Warp: A Graphics Space 

Game 
O How to Reduce “Blank Screen 

Time” 


d you own a Timex Sinclair, a ZX81, 


The magazine for Sinclair and Timex Sinclair users _ 


O Storing Three-Letter Words in an 
Array 

O Software Review: ZX Galaxians 

O An Introduction to Expression Eval- 
uation 

O Short Programs Just for Fun 

O The ZX81 Parser and User-Defined 
Commands , 

O Understanding Floating Point Arith- 
metic 

O Handling Strings from Another Di- 
mension 

O Book Review: Understanding Your 
ZX81 ROM 

O How to Add a Keyboard to Your Sin- 
clair 

O Translating Other Basics: DEF on 
the ZX81 

O Six Outer Space Games—With Pro- 
gram Listings 

O Hardware Review: Sinclair ZX Spec- 
trum High Resolution Color / Sound 
Computer 
If you own a Sinclair microcom- 

puter, Sync is the only computer mag- 

azine you really need. Subscribe now 

to Sync, and you can save up to 33%! 

Just complete and return the post- 

age-paid reply card or the coupon 

at right. 


— 


"Math and Science: 


e Least Squares Analysis 


Programming: 


e Alternative Display 
e Storing Words- 


-Space Warp 


Graphics Game 


ARCCOS ARCTAN SG 
; CLEAR CONT 


CHRS CODE 
LOAD LIST 


SAVE UP TO 33% 


ON SYNC! 
— | | 


CN 1986: Morristown, NJ 07960 


YES! Please send me 

a Sync for: 

O One year (6 issues) for $12.97— 
| save 19%. 

O Two years (12 issues) for $22.97— 
| save 28%. 

O Three years (18 issues) for 
$31.97—I save 33%. 


Savings based on full 1-year subscription price 
of $16. 


(please print full name) 


POOS S30 ee 


4D14 


City 


Tle a a 


CHECK ONE: 
O Payment enclosed. O Bill me later. 


Offer valid in U.S. and possessions only. Please allow 
60 to 90 days for delivery of first issue. 


FOR 
SINCLAIR 
AND 
TIMEX 
SINCLAIR 
OWNERS 
ONLY 


FULL SIZE KEYBOARD 
CONVERSION 


FOR 
YOUR 
ZX-81/ 
TS-1000 


Fully Warranteed 
For 90 Days! — 


SUN KD-81 


If your tired of not knowing if your data got entered or tired of poking 
data in with one or two fingers, then it’s time to upgrade your ZX-81 i Ni STA aa 
to a full size, professional, keyboard. The SUN KD-81 KEYBOARD 

@ No Soldering 


offers just that ... all the ease and comfort of inputting your programs 
and text on a fast and efficient professional sized keyboard! ® No Modifications 


KD-81 Features: 


@ Full Size Keyboard with 41 Keys è Easy Assembly Check out these 
@ Full Size Space Bar @ Two Color Imprinted Key Tops simple 
@ Allows Touch Typing for Easy Reading ee 
@ Keyboard Case Holds Both @ Key Tops have Commands and \. instal- 
Keyboard and Computer Graphics Spelled Out for Easy 7 » lation 
© High Impact Plastic Case with Programming : 
Vaporized Metal Shielding @ Measures 10%” x 74” x 212" steps! 


1 > RAM @ Steel Case instead of plastic 
Module reduces RFI 
with “PIGGYBACK” Connector © RAM Module has lip for mounting 
for those EXTRA ADD-ONS on ZX-81 or our KD-81 keyboard 
that eliminates noise and crash 
problems due to the “wobbles” 


1. Remove 4 screws securing ZX-81 case 
and remove 2 screws holding ZX-81 PCB. 


2. Unplug the 2 ribbon cables from the 
ZX-81 keyboard. 

3. Plug the 2 ribbon caples into tne con- 
nectors on the KD-81 keyboard. 

4. Attach the ZX-81 PCB to tne KD-81 
case with 2 screws, close case and instali 
remaining 4 screws into the bottom of tne 
KD-81 Keyboard case ... 


Built-in output connector for 
piggyback mounting $ 
additional peripherals 


Equivalent to ZX-81 
or TS-1000 16K 
RAM in performance 


And enjoy the comfort and 
ease of inputting your data 
on a full size keyboard! 


All these features 95 
And stilPonly. 22.325 S49 


MX-16 mounted 


ee: and 64K available.......... CALL on tha DEST 
ily hae CALIFORNIA OUTSIDE CALIFORNIA TOLL FREE 
-==— SUNTRONICS CO 
——— L, INC. 213-644-1149 1-800-421-5775 
12621 Crenshaw Blvd., Hawthorne, CA 90250 (for Tech Info and Calif. orders) (Order Desk Only) 
—_ STORE HOURS: MON.-FRI. 9:00am to 6:30pm Mail Order— Minimum Order $10. Send Check or Money Order to: P.O. BOX 1957— 


ae SATURDAY 10:00am to 5:00pm Dept. B, HAWTHORNE, CA 90250. VISA or Mastercard (please include expiration date’ 
ta af Add $4.00 postage and handling to order. CA residents add 6% sales tax 


Extending, continued... 


Pericon b (B28). $59.95. 

Access and control of outside world. 
24 lines capable of directly operating 
relays or driving long signal lines. On 
board address decoding allows simulta- 
neous use of up to 4 such modules. 


Pericon c (B29). $74.95. 

Centronics type parallel interface per- 
mitting an 80-column dot matrix printer 
to be connected. 


Micro Development Line. 

MD Beeper/Clock/Switch Board (M72). 
$79.95. 

Provides for timing, periodic input or 
measurements, manual start/stop, and 
sound alert for operator. Board mates to 
MD bus via 2 standard 16 pin ribbon 
cables. Clock set up as a 15 bit stop watch; 
has a resistor capacitor time base; can be 
switched for 0.1 or 1.0 second intervals. 
Beeper on board. Sample programs. 


MD I/O Expansion Board (M70). $89.95. 

Board mates to ZX81 edge connector 
via a custom made cable. For inexperi- 
enced users the A/D-D/A Expansion 
Board is recommended. Sophisticated 
users will be able to connect their own 
devices to the MD I/O Board which pro- 


vides a bus, similar in function to an S- 
100 bus and which buffers and decodes 
address lines, inhibits the internal RAM 
(and external RAM) when I/O is selected, 
accepts optional 16K RAM on a Sinclair 
type edge connector. 


MD A/D-D/A Expansion Board (M71). 
$89.95. 

Provides 2 channels of ADC and 2 
channels of DAC. 8-bit resolution is ob- 
tained in 100 microseconds. I/O com- 
mand requires a single line of PEEK or 
POKE. Sample programs. 


Hunter 

8K Nonvolatile CMOS RAM/EPROM 
Board 

$29.95 plus $1.95 s&h. 

Designed to fill the 8-16K memory 
block. Store your own system utilities or 
build a library of machine language rou- 
tines. Can be used for HOT-Z or other 
firmware in EPROM. Can be used with 
any ROM or RAM. Available assembled. 
See ad in this issue. 


Memotech Corporation 
Memopak 16K Baseline. $49.95. 

The 16K Baseline is the most 
economical way to add memory to your 
TS1000. It is fully compatible with 


Memopak 16K and 32K RAMs to pro- 
vide you with up to 32K or 48K RAM 
respectively. 


Memopak 16K RAM. $59.95. 

The Memopak 16K RAM offers 
expansion capabilities through its “piggy 
back” connection and is fully compatible 
with Timex or Memotech 16Ks to give a 
massive 32K RAM. 


Memopak 32K RAM. $109.95. 

The 32K Memopak enables you to 
execute sophisticated programs and 
store large data bases and like the 16K 
RAM is fully compatible with Timex’s 
or Memotech’s 16K RAMs to give you a 
full 48K RAM. 


Memopak 64K RAM. $179.95. 

The 64K Memopak is powerful 
enough to turn your TS1000 into a com- 
puter with capabilities suitable for busi- 
ness and educational use. It accepts such 
Basic commands as 10 DIM A (9000). 


Orme 
2K “Toolkit” Preprogrammed EPROM 
1K plus. $12. 

Works with EPROM-READ CARD. 
2716 EPROM operating in 8192-10239 
part of memory-map. Programmed with 


ZX81/ 
TS1000 


Keyboard 


An add on full size full travel 43 key 
keyboard. The keyboard allows func- 
tion mode. Shift Lock and Graphics 
symbols to be obtained with one 
keystroke. The three cables from the 
Keyboard plug directly into the 
ZX81/TS1000—Full instructions 
incl. Completely assembled with 
case. 


Send Ck/M.O. To: 


RAMEX INTERNATIONAL 


P.O. Box 50 


READY TO GO IMMEDIATELY! Utica, MI 48087 
TT TLTTLifTttttttittleeteeteristititeriresfttftbhfthtTtheeerr ere 


f Please Send ZX81 Keyboards @ $59.95 
E Add postage and handling of $5.00 
3 Name 


E 
H Address 


a 
= 
E 
Total Enclosed E EN Lean E 
g 
g 
a 
g 


-5 Please send information on your other fine hardware products as they become available. 


ETTET ETILLTITTEFECEFTT TITTI TEErII ITIITI. 
May/June 1983 35 


36 


Extending, continued... 


Breakout, Life, and Toolkit (Renumber, 
including GOTO and GOSUB; READ, 
DATA, RESTORE; BLOCK-FILL, of 
screen; block delete, part of program; 
size, of program; free memory and 
others). 


EPROM-READ Card 
1K-16K RAM. $15; s&h $3.50. 

The EPROM-READ card accepts 2K 
2716 and 2516 EPROMS. No RAM is 
used. Operates in the ROM space 8192- 
10239 of the memory map. The 
EPROM-READ card fits between the 
computer (or printer) and the 16K 
RAM pack. With modification it is 
compatible with certain other types of 
RAM. (Greater than 16K). A pre-pro- 
grammed EPROM is available. 


EPROM Programmer 
1K plus. $45 p&h $3.50. 

The EPROM programmer programs 
EPROMs directly in the 8192-10239 
part of the memory map. The bytes to be 
stored being POKEd directly at the re- 
quired address. Full software and 
instructions supplied. 25VDC stabilized 
power-supply for the programmer; $13 
plus $5 s&h, from 110V or 240VAC. 
(please specify). 


RAMstrap 
RAMstrap. $3.00 pp. 

RAMstrap is designed to help users 
with RAM pack wobble crashes. It holds 
your RAM pack firmly in place by means 
of a powerful elastic strap which fastens 
to anchors installed on your computer; 
no holes. Strap, anchors, and directions 
supplied. 


Sunflower Systems 
Sunflower Systems 
64K RAM. $119.95 plus $5 s&h. 
Maximum memory, minimum price! 
Large data bases, pages of workspace for 
word processing; spreadsheets with 
many rows and columns, huge, complex 
adventures. All these and more can be 
yours with our 64K RAM! We offer the 
lowest price for an American manufac- 
tured, fully cased, assembled and tested 
64K RAM. 


Wisconsinc Electronics 
EPROM Copier P-2. $35. 

Copier programs 2716 EPROMs with 
data provided by a X2816A EEPROM 
or another 2716 EPROM. Ideal for low- 
cost permanent storage of data or pro- 
grams. Operates on batteries (not 
included). Nonvolatile X2816A 
EEPROMs and 2716 EPROMS avail- 
able at competitive prices. 


Kad 


BES intercomputer Inc. 


Expands the use 
of your TIMEX SINCLAIR 1000 


INTERCONTROLLER,, 


Makes Your Life a Little Easier 


Put your Timex Sinclair 1000 to work around the clock 
and does any number of tasks for you automatically 
(turns on/off your lights, motors, water your lawn. . .). 
Just plug INTERCONTROLLERw into your computer 
and program each of the unit three switches individu- 
ally. The INTERCONTROLLERwis software program- 
able time intervals from fraction of seconds to days. 
You can connect up to four INTERCONTROLLER 
units to your computer if you have a SOFTBOX. 


#PL7013 $34.95 
CARTRIDGES 


Don’t Wait For Cassette Based Programs To Load 


Many Intercomputer programs are also available on 
solid state cartridges. Just plug a cartridge directly 
into your TS 1000 or if you have a SOFTBOXm, con- 
nect up to four cartridges to your computer at a time 
and enjoy having instant and easy access to your 


favorite program. #CS1001 $24.95 
SOFTBOX. 


This modular box contains four gold plated, software 
selectable connectors which can hold any combina- 
tion of INTERCONTROLLERmw units or software 
CARTRIDGES. The SOFTBOXm has a DC power 
input jack, an on-off switch, and an LED indicator, 
providing a better alternative for powering on/off your 
computer and peripherals eliminating overloading 
problems. Additional peripherals, such as extra 
memory can be attached on the back of the 
SOFTBOX. #PL7012 $59.95 


STOPPER 


With no doubts you have felt the frustration of not 
being able to see the listing or to make backup copies 
of machine code programs. Intercomputer STOPPER 
ends this frustration and enables you to break through 
any machine code software you want, list the program 
on the screen, save it on another tape, or print it if you 
have a printer. Simply load STOPPER and your pro- 
gram into your TS 1000 and follow instructions. Once 
loaded STOPPER stays in your computer and you may 
use it for other programs. #PT4002 $18.95 


MEMOTECH PERIPHERALS 


MEMORY EXPANSIONS 

e 16K RAM #PL7002 $ 59.95 

e 32K RAM #PL7003 $99.95 

e 64K RAM #PL7004 $149.95 

e HIGH RESOLUTION GRAPHICS (16K RAM) 
# PL7007 $99.95 

e PLUG-IN KEY BOARD # PL7011 $99.95 

e CENTRONICS PARALLEL INTERFACE # PL7005 
$ 74.95 

e MEMOTECH RS232 INTERFACE # PL7006 
$99.95 
PRINTERS 

o SEIKOSHA GP-100A PRINTER The revolutionary low- 
cost dot matrix impact printer—Uses up to 9.5” paper 
# PL7008 $349.00 

e SEIKOSHA GP-250X PRINTER The most intelligent 
programmable graphic printer—Uses up to 9.5” paper 
# PL7009 $449.00 

e PRINTER-INTERFACE CABLE #PL7010 $19.95 

e MEMOCALLC Software on plug-in EPROM cartridge— 
Spread sheet analysis—Up to 7000 numbers (when 
used with 64K) #BS200C $59.95 


EDUCATIONAL ADVENTURE 
SERIES 


e EDUVENTURE I Answer the questions encountered 
in each classroom until you make it outside for RECESS 
and the surprise that awaits you there. (Grade level K-3) 
# ED3001 $12.95 

e EDUVENTURE II Each new situation requires either 


ae 


JH INTERCOMPUTER INC. 


HARDWARE AND SOFTWARE PACKAGES 


QSAVE A Hardware-Software Combination— 
Allows a baud rate of 4000 to be achieved com- 
pared with only 250 on the normal SINCLAIR 
ZX81—Loads and saves a full 16K in only 29 
seconds—Works with 16K and 64K. # PL7001 
$37.95 | 


HOME MANAGEMENT 


e BILL ORGANIZER Keeps track of bills, amounts due, 
date due, finance charges, payments made, etc. Sum- 
marizes all data for tax purposes. # HM5001 
$14.95 

e CHECK BOOK Balances and maintains your 
checkbook. Finds all checks written to one payee easily. 
Add a printer and it will even write checks for you. 
#HM5002 $14.95 

e ADDRESS BOOK Store, update and retrieve names, 
addresses, and phone numbers. With a printer attached, 
it will print mailing labels, sorts entries alphabetically 
by name, or by Zip Code. Only remember part of a 
name? It will find records from incomplete informa- 
tion. Code the entries for special purposes, i.e. 
Christmas Cards, Party Invitations, etc. #HM5003 
$14.95 

e OCCASION CALENDAR Keep track of birthdays, an- 
niversaries, meetings and special events. Have your 
calendar appear on the screen at the touch of a key. 
# HM5004 $14.95 


All programs use 16K RAM. 


ENTERTAINMENT 


e MISSILE LAUNCHER Challenge the enemy by 
destroying his ammunition stored in different locations. 
# FG1002 $12.95 

e KRAZY KONG A new version of the popular arcade 
game. This program has all the features of the original 
and is every bit as fast. #FG1013 $12.95 

e GHOST HUNT Gobble your way through a maze of 
Ghosts, Power Pills, etc., etc., very fast. # FG1014 
$12.95 


your ingenuity or knowledge (or both) to avoid being 
sent to the principal’s office. (Grade level 4-6) į Mail to: Intercomputer, Inc., P.O. Box 90, Prudential Center, 
# ED3002 $12.95 l Boston, MA 02199 
e EDUVENTURE III Solve complex puzzles to outwit ! 


e MAZE DRAG RACE Drive through a giant maze 9 
times the size of the screen, watch out for other cars, 
rocks, oil and ice. A really superb machine code 


i PART # TY.  UNITU.S.$ TOTAL | game. #FGIOI5 $12.95 
your teacher and achieve the highest scores. (Grade i Q | e DEMOLISHER Design an intelligent strategy to 
level 7-9) # ED3003 $12.95 
i | | demolish a growing wall before it crushes you. 
e EDUVENTURE IV An agile mind and quick reflexes I #FG1005 $12.95 
i get E “A aati of ae peers | ee ily eee | © MCODER Compiles a BASIC program into machine 
hee - (Grade level 10-12) f Bea ER | code—Extremely simple to use—Write and debug your 
l į Basic programs—Enter the MCODER—the Basic pro- 
All programs use 16K RAM. i a ed, EN | gram will be compiled into machine code as you 
| Pee ae | watch. # PT4001 $18.95 
NEW products coming soon: Software on ROM/EPROM | Act A oe i ERN 4 e T TR 
CARTRIDGES—SOFTBOX v. A software library which Shipping and Handi 1° VEGAS #FG1004 $12.95 
can contain several ROM/EPROM programs. Plug in your | Pea 9.95 e AIR ATTACK #FG1006 $12.95 
computer and instantly call any program from your Shipping and Handling e GUARD THE PRESIDENT #FG1007 $12.95 
SOFTBOX — A full line of software and peripherals i Memotech Products and QSAVE 4.95 l e SUBMARINE #FGI011 $12.95 
for the colorful ZX SPECTRUM/TIMEX ! Nats. Residents Tae 5% i: COMBO PACK I Contains Return From Space and 
SINCLAIR 2000. | $ Missile Launcher #FG1008 $18.95 
i | Total | e COMBO PACK II Contains Vegas and Jeopardy 
For more information, Free Brochure, and ! l #FG1009 $18.95 
Special Package Discount, write or call; 1 H Chek © Mastercard [I Visa a COMBO PACK III Contains Demolisher and Air Attack 
; j i # FG1010 $18.95 
IC INTERCOMPUTER INC. S pia | © COMBO PACK IV Contains Guard The President and 
P.O. Box 90, Prudential Center i | Submarine #FG1012 $18.95 
Boston, MA 02199 Tel: (617) 437-1190 į Name | All programs use 16K RAM. 
Telex: 951141 COFAR l Address 
j Limited —Defective Software will be replaced if returned withi 
Phone Or der S$ 7 Days/ Wi City State Zip j 30 pia psen Products 180 daye-—Selkosha Printer: 90 days 


Extending, continued... 


interfaces, Boards, 
and Connectors 


Advanced Digital Innovations 
Slow Mode 
For 4K ROM ZX80/MicroAce users. 
Can’t use SLOW mode? Keyboard 
worn out? Our custom systems can turn 
your ZX80/MicroAce into a machine 
more powerful than the Z X81, e.g., run 
with either 4K or 8K ROMs, battery back- 
up, I/O ports, custom cases, a standby 
display for use when no TV is available. 
Most options also available for the 
TS1000 and ZX81. 


Aerco 
FD-ZX Floppy Disc Interface 
16K RAM Min. $179. 

Interfaces Sinclair computers to in- 
dustry standard Shugart compatible 
floppy disc drives. Controls from 1 to 4 
drives of any size, single/double density, 
single/double sided except double den- 
sity not available for 8” drives. Includes 
driver software in EPROM. 


ZX-SB STD Bus Interface. $99. 

Interfaces Sinclair to industry stan- 
dard computer bus. Allows choice of 
hundreds of peripheral interface cards 
from numerous manufacturers. 


ZX-CA Ribbon Cable Assembly. $20. 

Ribbon cable allows reliable connec- 
tion between Sinclair computers and 
plug-in peripheral devices. Completely 
eliminates problems from jiggling 
peripherals. 


DV-1 Direct Video Modification. $15. 

Allows connection of standard 
(composite video) computer monitor to 
Sinclair computers for noise-free display. 
2 transistor circuit requires installation 
inside computer. 


Artisan Electronics 
Kote Jack 
One half oz. kit: $5.95 plus $1 s&h. 

A jelly-like professional compound to 
provide an occlusive deterrent to dirt and 
oxidation once contacts are cleaned and 
mechanical contact assured in low level 
mechanical switching and various metal- 
to-metal transfer interfaces such as audio 
jacks, signal plugs, card edge connectors, 
and a myriad of pin connects. A long 
term cure for system “crashes” with RAM 
packs, power and data connectors. 


Strap Down. Kit: $5.95 plus $1 s&h. 
Prevent RAM pack wobble, system 
crash, and flopping cables. Kit contains 
high strength, precut and punched strap 
to hold down the computer and RAM 


pack, cable clamp to organize cables. 
Computer can be fastened to portable 
board or desk top. No modifications 
required. Takes 5 min. to install. 


Atto-Soft 
Joystick. $14. 

Turn your computer into an arcade 
style game player. Designed for use with 
Atto-Soft’s ZX-Man, but includes soft- 
ware examples to help you write your 
own programs. For ZX80/81 or TS1000. 


Basicare Micro System 

A range of low priced modular add-ons 
to vastly increase the capabilities of your 
computer. The PERSONA, the system 
expansion controller, allows stacking fur- 
ther units to create a system tailor-made 
for your purposes. Units include: 16K to 
64K RAM, EPROM module to non- 
volatile memory with battery back up, 
I/O port to centronic printer interface, 
sound synthesizer to A to D, D to A 
converters. Write for details. 


‘Bob Berch 


ZX Serial Printer Interface 
Plans and listing: $5. 

A fast, inexpensive, relatively easy way 
to connect a ZX computer to any serial 
printer. Outputs a ASCII RS232 signal 
through the MIC port. Supplied as hard- 
ware plans and software listing. Hardware 


LIMITLESS EXPANSION FOR SINCLAIR/TIMEX 
FLOPPY DISC INTERFACE $179 +*1-4 DRIVES, ANY SIZE *SINGLE/DOUBLE 


DENSITY * INDUSTRY STANDARD IBM FORMAT ¥ON BOARD DOS IN ROM x 


RIBBON CABLE CONNECTIONS FOR MAXIMUM RELIABILITY 


1000 TIMES FASTER THAN CASSETTE 


5.25” DOUBLE DENSITY FLOPPY DISC DRIVES $189 ea. 


POWER AND CABLES FOR 2 DRIVES $79 
STD BUS INTERFACE $99 COMPLETE WITH RIBBON CABLE 


CHOOSE FROM 300 PERIPHERAL INTERFACES, 60 MANUFACTURERS 


CENTRONICS PRINTER INTERFACE $119 comecere wiTH 


PRINTER CABLE, SOFTWARE IN ROM 
DIRECT VIDEO MODIFICATION $25 we isra $15 You INSTALL 
WORD ED SOFTWARE PACKAGE $15 MACHINE LANGUAGE 


CO 


BOX 


(512) 


y% 
* t 


fr 


18093 AUSTIN 
TX 78760-8093 


385-7405 


Hardware Breakthrough! 


% ZX-Man 
$1495 


X Joystick 
$1495 


*% Keyboard 
$7495 


full-size assembled 
w/leatherette case 


FULLY ASSEMBLED KEYBOARD 


1) Fully assembled 4) 2X80/ZX81 compatible 
2) Includes Key Cap Legends 5) Some soldering necessary 
3) 30 Day Warranty 6) Timex TS1000 Compatible 


THE INNOVATORS 
ARE COMING 


Call or Write for more information 


American Express, Visa, Master Charge, Money order, pc (allow 2-3 weeks to clear 
Please add $2.50 postage & handling 
illinois residents please add 5% Ill. sales tax 


Visit our Showroom 10:00 - 6:00 Monday thru Saturday 


pea MICROCOMPUTERS PLUS, INC. 
EXPRESS Cea | 349 EAST MAIN ST. 
| GALESBURG, IL 61401 
PHONE: (309) 342-9572 


Cards 
Welcome 


Extending, continued... 


costs less than $10, requires one connec- 
tion within case. Software is 280 bytes of 
relocatable machine code; provides print- 
ing of characters, strings, program listings, 
and screen copying. 


Byte-Back Co. 

Modem (MD-1) 

Kit: $119.95. 

Wired and tested: $149.95. 

Allow you to connect your computer 
to the largest computer networks, e.g., 
University Computers, Dow Jones, UPI. 
Dial a phone number, press a few keys, 
and watch the data appear on your 
screen. Software included. RS232 port 
provided to allow you to drive all RS232 
peripherals. 


RS232 Module 
Kit: $59.95. 
Wired and Tested: $69.95. 
Allows you to connect your computer 
to all RS232 printers and terminals. 


Control Module (BB-1) 
Kit: $59.95 
Wired and tested: $69.95. 

8 independent relays with LED status 
indicators; 8 independent TTL inputs 
with Schmitt trigger buffers. Single POKE 
command changes and latches the status 
of each of the relays. PEEK command 


reads the status. Comprehensive manual. 


2x81 TIMEX MICROACE 
CRASH NOT. WANT NOT. 


ZX80 


Have you had unexplainable system crashes? Lost 
programs due to brownouts or power failures? Or 
just plain tripped over your electric cord? 


If so, you need an uninterruptable power supply. 


UPSYSTEMS is a battery powered backup system 
that kicks in automatically as soon as its sensors 
detect a drop in voltage coming frorn your power 
supply. Your system keeps on ticking. 

Simple to install and use. Just plug your power cord 
into UPS and plug UPS into your system and you 
are ready for any power glitch or failure. (Additional 
cord included). 


All systems include on/off/reset switch for your 
convenience (you no longer have to unplug your 
computer to reset it). All systems are compact, ap- 
prox. 13cm x 7 cm x 4 cm (5%" x 2%" x 15"). 


UPS-1 Economy system, uses 2-9 volt alkaline 

batteries (not included). $14.95 + $2.00 

shipping, handling & insurance. 

UPS-1M Same as UPS-1 except it includes a Pro- 
gram Loading Monitor to solve your tape 
loading problems. $24.95 + $2.00 S, H&l. 

UPS-2 NiCd system that recharges itself auto- 
matically (NiCd batteries included). $29.95 
+ $3.00 S, H&l. 

UPS-2M Same as UPS-2 except it includes a PLM. 
$34.95 + $4.00 S, H&l. 


90 Day Guarantee on Parts and Labor. 


Check or money order payable to: UPSYSTEMS. 
Foreign orders add $1.00. Allow 4-6 weeks for 
delivery. 


UPSYSTEMS 

RA BANKS 

P.O. BOX 501901 
HOUSTON, TEXAS 77250 


Bytesize Computer Products 
The Z-Dubber. $31.95 pp. 

Connects between the cassette 
recorder and your computer. Greatly 
increases the ease of loading a program 
correctly the first time. Lets you connect 
two cassette recorders together to make 
perfect duplicates of your cassette pro- 
grams. 


CAI Instruments Inc. 
Network Communications Package 
$149.95. 

Package consists of the ASCII firmware 
program, Modem (acoustical), and 
modem cable. This with the CAI/O board 
allows the TS1000 and ZX81 computers 
to communicate with mini and main- 
frame computers. The information comes 
in with no screen flicker and can be 
viewed, stored, and printed if desired. 
(This feature is on all the serial programs 
by CAI.) 


Serial Printer Firmware. $24.95. 

The serial printer firmware is contained 
in the ASCII Firmware and when used 
with the CAI/0 board, allows the user to 
communicate with other computers and 
with serial devices such as printers and 
teletypes. Serial communications can be 
performed at BAUD rates of 110 to 9600 
using simple keyboard commands. 


CAI/0 Board. $79.95. 

The CAI/0O board is an input/output 
interface which is designed to allow the 
TS1000 and ZX81 computers to commun- 
icate with serial (BAUD rates program 
selectable between 100 and 9600) and 
parallel (Centronix) printers, or with com- 
puter networking systems. The parallel 
port can also be used to control lights and 
many different devices around the home, 
office, or laboratory. 


ASCII 
$24.95. 

The CAI/ASCII firmware is used with 
the CAI/0 board. Converts the non- 
standard Sinclair code to standard ASCII 
code allowing the TS1000 and ZX81 com- 
puters to communicate with other micro/ 
mini computers (Apple, Commodore, 
TRS-80, IBM, etc.) and main frames with 
computer networking systems. 


Communications Firmware. 


Computer Continuum 
Analog Interface Board. 
Assembled and tested: $230. 
Kit: $180. 

A/D 8 channels plus D/A 8 channels 
high speed 8 bit all purpose interface 
board. Works on any Sinclair computer 
and includes features for easy interfacing 
to other brands. Many mounting options: 
Box and ribbon cable: $15; Piggy back 
kit: $15. Software for digital scope and 
spectrum analysis. 


Buffered Bus/Development Board 

Kit: $65. 

Bare Board,connector, manual: $40. 
Fully buffered with four types of con- 

nectors to connect to prototyping cards 

or peripherals. Circuit frees 8K of 

addresses for your use. Provision for vol- 

tage regulator. Fits ZX80/81, MicroAce, 

T/S1000; no ROM or RAM require- 

ments. 


Ribbon Cable Connector 

Female ribbon connectors fit on to 
Sinclair computer: $7. Male ribbon con- 
nector fits onto peripherals: $7. 


UHF Modulator. $15.+ s&h. 

Replaces the VHF (ch 2-3) modulator 
on the ZX81 circuit board. UHF receiver 
is much less sensitive to the interference 
which is radiated from the computer or 
its peripheals. Makes using your TV pos- 
sible with unshielded peripherals. 


Computer Engineering Services 
ZX80 Video Upgrade Kit 
$12.95 plus $1.20 s&h. 

Get FAST and SLOW modes on your 
ZX80 with 8K ROM. PCB with complete 
instructions and parts list. PCB. will work 
with new ROMs if installed properly. 


Cosmonics 
Cosmonics Plans for an RS232C TTL 
Level Converter. $6.50 plus $1 s&h. 
These plans allow you to construct an 
RS232 TTL Level Converter from simple, 
inexpensive hardware components. The 
plans are written in a step-by-step manner, 
and include diagrams. This converter, 
when used with the Cosmonics TTL Serial 
Input/Output Port Package, will allow 
you to connect a TS1000 or ZX81 to 
most RS232C peripherals. 


Cosmonics TTL Serial Port Software 
4K RAM. Cassette: $18 plus $1.50 s&h. 
Provides the proper timing for RS232C; 
translation between the ASCII character 
set and the Sinclair character set. Allows 
the user to connect his computer to a 
modem, printer, or terminal via use of 
TTL input/output port plans and an 
RS232C TTL level converter. Plans for 
ports and converter are available from 
Cosmonics. 


Cosmonics TTL Serial Input/Output Port 
Package 
4K RAM. $26 plus $1.50 s&h. 

This package contains Cosmonics TTL 
Serial Port Software, plans for building 
input and output ports which reside inside 
a ZX81 or TS1000, and necessary hard- 
ware components. When this package is 
used with an RS232 TTL Level Converter, 
the user may connect his computer to 
most RS232C peripherals. 


Continued on page 116. 
SYNC Magazine 


CHANGE YOUR 
TIME AYSCSINCLAIR 1000 DISFLAY 
TO FULL COLOUR GRAPHIC: 
with 


ROLORWORKS 


OOF AT THE FEATLUFRES | l] 


¢ Plugs into ZX81/1000 (edge connector) ¢ User defined characters & graphics up to 
256x192 pixels 
¢ Latest technology with TMS9918 VDP ¢ Module contains extension of basic 
(32 sprite levels) commands including: PAPER/INK/ 
¢ Module contains it’s own memory BORDER/BIN/SPRITE/OUT/INP/etc. 


¢ All text will run on the color tv 
for t 1i-4ẸF., FS 


KOLORWORKS COMES WITH A LIMITED WARRANTY ON PARTS AND WORKMANSHIP 
USE YOUR KOLORWORKS IMMEDIATELY WITH A GAME CASSETTE FOR $9.95 
This delightful game is designed for hours of fun using some of the color graphic capabilities of 
KOLORWQRKS. The cassette also contains a short program to familiarize you with some of the 
commands and graphics. 


OOD OOD 000000 000 000 000000 000000 00O0oOooOOnoOOOoOOOOOOOCOOOOOOOOOOOOOOOOOOOoOOOOOOOOOOOOOOOOooOOOOOOOOOOOOOOOOOOOOOOOoDOOooooODoO 
Enjoy Game Fun With 


GAAMWORKS 


THE SOON TO BE RELEASED GAME MODULE 
(proto-type stage) WILL OFFER SOUND, ROM 
CARTRIDGES AND JOY STICK PORTS FOR 
YOUR TS1000/ZX81. 


+ THE SOUND will be of arcade game quality 
which you can program for music, animals, trans- 
portation (auto, train, airptane, etc.) and ma- 
chine sounds. 

¢ ROM CARTRIDGES will have up to 8K of ROM 
using either 2716, 2732 or 2764 EPROMS. We 
will have pre-programed cartridges and blank 
cartridges which you can program. We will be 
offering a service to burn EPROMS from your 
cassettes. : 

¢ JOY STICK PORTS will allow for the use of two ‘‘Atari’’®compatible joy sticks. 


SORRY PRICE IS NOT AVAILABLE AT THIS TIME! GAAMWORKS WILL BE AVAILABLE BY MAIL ORDER 
STARTING MARCH 1st. FOR FURTHER INFORMATION, SEND $2.00 (Credited to Order). 

At this time KOLORWORKS and GAAMWORKS is available only by mail order. 
MAIL TO: BRAINCHILD COMPUTER WORKS, INC. 


P.O. Box 506 
Pewaukee, WI 53072 


PRICE QTY. AMOUNT 


KOLORWORKS Ue es eas 
CASSETTE BEE acini 


Shipping & Handling 4.95 
Wi. residents add sales tax TAX — ee 
TOTAL 
My check O money order is enclosed ENCLOSED 
Name 
Street 
City State Zip 


Please allow six to eight weeks for processing. Thank you. 


Programming Aids, 
Utilities, Toolkits 


ACS Software 
ACS-Debug 
16K RAM. £5.50 plus s&h. 

Machine code debug program. Provides 
register contents, memory search, block 
move, memory list, etc. Can be wed with 
Acsemmbler and Dis-Acsem. Marketed 
in the US by Cleva Computer Ware. 


ProgMerge 
16K RAM. £5.50 plus s&h. 

Package for the merging and renum- 
bering of Basic programs. Renumbering 
routine can be used on its own if required. 
Marketed in the US by Cleva Computer 
Ware. 


ProgStore Toolkit 
16K RAM. £5.50 plus s&h. 

Package for adding subroutines from 
tape to a main program. Comes with 
subroutines for hexloader, hexlister, prog- 
store expansion, renumber. Marketed in 
the US by Cleva Computer Ware. 


Barlog Software 
Machine Code Starter 
16K RAM. Cassette: $7. 

A machine language program contain- 
ing 3 sub-routines:s MEMORY LEFT, 
INVERSE SCREEN, and FILL SCREEN. 
All 3 are disassembled and explained to 
the beginner. 


Bob Brown 
Renum 
16K RAM; 64K RAM. Cassette: $5. SASE 
for information. 

Self-loading line renumberer that does 
GOTOs and GOSUBs; renumbers a Basic 
program in 5 seconds. All machine code. 


Bug-Byte Software 
ZXTK 
16K RAM. Cassette: $14. 

Toolkit adding 10 commands including: 
FULL RENUMBERING, MERGE PRO- 
GRAMS, READ FILE NAMES FROM 
TAPE, and more. 


Cleva Computer Ware 
De-Bugger 
16K RAM. Cassette: $9.95. 

Makes writing machine code pro- 
grams easier. Works entirely in decimal; 
hexadecimal is not needed. 


42 


Progmerge 
16K RAM. Cassette: $9.95. 

A series of machine code routines for 
storing Basic programs. The stored ma- 
terial can then be inserted into a second 
Basic program and the composite pro- 
gram formed is automatically remem- 
bered. Progmerge runs immediately 
after loading and by the time that the 
summary of the instructions appears on 
the screen, the machine code instruc- 
tions will have been transferred into user 
space. 


Progstore 
16K RAM. Cassette: $9.95. 

A series of machine code routines that 
create 3072 bytes of user space and then 
transfer into this space machine code 
routines that allow the transfer of a Ba- 
sic program into the user space after 
running this program allow a return to 
another Basic program stored con- 
ventionally in low memory. 


Progstore/Tool Kit 
16K RAM. Cassette: $9.95. 

4 utility programs that operate from 
progstore. Having loaded progstore in 
tool kit can be loaded and then 
progstored with RAND USR 32500. 
Each program can be run by RAND 
USR 32723. Hexloader allows machine 
code programs to be rapidly written in 
hexadecimal. HEXLISTER: com- 
plements HEXLOADER by allowing 
machine code programs to be listed in 
hexadecimal. 


Computer Engineering Services 
Compute 

16K RAM. Cassette: $12.95 plus $1.95 
s&h. 

A programmable program. If you are a 
serious programmer of the Sinclair, this 
program will help you to assign various 
mathematical functions to your program 
variables. Instructions and listing. By Rolf 
L. Miller. 


Cosmonics 
CIOUTIL 
2K RAM. Cassette: $17 plus $1.50 s&h. 
This utility allows the user to save data 
from strings, arrays, or a memory location 
onto a cassette. It can assist in the trans- 
lation of program listings written in Basic 
which contain “write to cassette” and 
“read from cassette” statements. Full 
documentation and a sample program 
demonstating its use. 


Programming Your Computer 


CFASTDATA 
16K RAM. Cassette: $20 plus $1.50 s&h. 
This utility provides all of the capa- 
bilities of CIOUTIL, but is 6 times faster. 
Writes data to cassettes and reads data 
from cassettes at a speed which is 6 times 
faster than the TS1000 and ZX81 SAVE 
and LOAD commands. 


CFASTDUET 
16K RAM. Cassette; $27.50 plus $1.50 
s&h. 

2 programs: CFASTDATA and 
CFASTLOAD. When both programs are 
used, you may LOAD programs and data 
at a speed which is 6 times faster than the 
TS1000 and ZX81 LOAD and SAVE com- 
mands. CFASTLOAD can be configured 
to your needs. No additional hardware is 
needed. 


CRC Software 

Reline 

16K RAM. Cassette: $9.95. 
Renumbers your Basic programs. 

This is a very useful utility. 


Custom Electronics Device Corp. 
ML Nit-Pick 

Look at blocks of memory; load hex 
code from the keyboard; see the results 
of your program run register by register, 
flag by flag. Converts hex to decimal and 
vice versa. Write for details. 


Gladstone 

BASICare Micro System. 
Toolkit (B26). $44.95. 

Accepts up to 8K of utility programs in 
EPROM/ROM. Located in address space 
after ZX81 on board ROM, allows for 
calling of Toolkit held routines via the 
USR function. 


Toolkit (Z42) 
16K RAM. Cassette: $14.95. 

Features: RENUMBER, DELETE, 
MEMORY check, DUMP (displays cur- 
rent values of string and numerical values, 
except arrays), FIND a string, REPLACE 
a string, SAVE (transfers program to 
below RAMTOP), APPEND (joins 2 pro- 
grams), REMKILL (removes all REM 
statements). (From Artic Computing.) 


Z-Aid (Z98) 
16K RAM. Cassette: $14.95. 

VERIFY confirms whether a program 
has been recorded properly. Mload/ 
Msave enables specified block of memory 
to be saved. VPTR eliminates tedious 


SYNC Magazine 


PEEKs and POKEs to find where vari- 
ables are stored. CHAIN allows 2nd part 
of a Basic program to be added to the end 
of the first. Z-Aid resides at top of 16K. 


4K Toolkit (D14). $29.95. 

Editor for Basic programmers. Offers 
11 facilities: ALTER (replace a string); 
BYTES (how much free memory); COPY 
(duplicates program lines); DELETE (a 
block); FIND (a string); HELP; INSERT 
(merge two programs); KEEP (a block of 
lines by storing them above RAMTOP); 
MOVE (lines within a program); 
RENUMBER; VERIFY. 


ZX Forth (Z43). $29.95. 

Forth allows you to define your own 
language by adding new functions to the 
language to match it to whatever you 
want to do. Advantages of Forth: Speed 
(runs up to 10 times faster than Basic); 
Interactive (once a word is entered it is 
compiled immediately and available for 
use); Flexibility; Structured. Package in- 
cludes: ZXForth on cassette, user’s man- 
ual, editor on cassette written in Forth, 
and editor manual. 


Graphicomp 
Machine Code Test Tool 
16K RAM. Cassette: $25.95. 
A utility program with a tutorial course 
enabling you to enter, test, display, and 


debug hexadecimal machine code rou- 
tines. By Oxford Computer Publishing. 
Available only in Canada. 


Human Engineered Software 
2K Programmer Kit 
2K RAM. $12.95. 

A first for Timex owners without 
expansion memory. Provides beginning 
programmers with the same time saving 
utilities previously available only with 
expanded memory. 


Integrated Data Systems 
2 Programming aids from Kayde 
16K RAM. Cassette: $11.76 each. 
Promerge. Toolkit. 
Programming aids from Oasis Software. 
$14.80 each. 
Macro Assembler. Disassembler and 
Debugger. 


Kopak Creations, Inc. 
Toolbox 
1K RAM. Cassette: $19.95. 

This program has the ability to read 
the names of programs on a tape and 
create a directory. You can also read 
data to the tape, and save data. 


Management Services Co. 
SYSLD 
16K RAM. Cassette: $12.95 pp. 
Take the burden out of writing in 


machine code with this utility: totally 
menu driven selector; write, list, insert, 
delete, and move machine code anywhere 
in memory; hexadecimal to decimal con- 
verter; routines in machine code for fast 
response; comprehensive documenta- 
tion. 


Melbourne House Software, Inc. 
ZX-Toolbox (26406MY) 
1K RAM. Cassette: $14.95. 

3 Programs. Directory: Displays names 
of programs on a tape. Record: Allows 
SAVEing data and READing it back into 
the program later; can be incorporated 
into your own Basic programs. Toolkit: 
Allows you to get better graphic effects 
and to write your programs more quickly 
and efficiently; commands: NO 
INVERSE, INVERSE, REVERSE, FILL, 
FREE, RENUMBER, FIND & 
REPLACE, OPEN. By Dr. Ian Logan and 
David Webb. 


Microsystems Specialists, Inc. 
uSS Pilot 
16K RAM. $29.95 plus $2 s&h. 

The latest language for the Sinclair and 
Timex systems. An excellent introductory 
language for children and beginners since 
it is easier to use than Basic. Features 
one-character commands and a line 
editor. Includes tutorial and sample pro- 


grams. 


May/June 1983 


Pete’s Crating Factory has just been invaded by an 
evil genius “Dr. Drake”. He has added departments 
to carry out his work with robots and totally rede- 
signed the factory. This would foil any attempts to 
plan a takeover by studying the factory’s original 
blueprints. After five attempts to sieze the factory are 
abandoned, Pete decides to hire you to get the factory 
back. Pete tells you the only two clues he knows; to 


Pete’s factory is in your hands. 


VIDEO ARCADE 
PETE’S FACTORY 


get from one level to another you must acquire a key To: 
and open the exit door, also there are robot demobi- Video Arcade 
lizers on each level that destroy only one robot. 824 Val Vista Avenue 


Video Arcade is planning many different arcade type 
game sin the future for the Timex/Sinclair Compu- 
ters. Universal joystick ports and ROM cartridges are 
also coming soon. If you have any comments or sug- 
gestions please drop us a line. LTurn your Timex/ 
Sinclair computer into an arcade with Video Arcade. 
Send $12.95 check or money order for Pete’s Factory 


Sheridan, WY 82801 


43 


Programming, continued... 


Mindware Inc. 
From Eagle Sales 
Screen Kit 
16K RAM. Cassette: $19.95 plus s&h. 
Series of MC routines for use in Basic 
programs. Execute complicated opera- 
tions with a few commands: Draw any 
size border; clear part or all of the screen; 
slide screen up, down, right, or left; invert 
video on part or all of the screen; create 
a flashing cursor; find how much memory 
is left; load any character to the whole 
screen; save and load Basic variables only 
to create data files. By Picturesque. 


From Eagle Sales 
Toolkit 
16K RAM. Cassette: $19.95 plus s&h. 

Lets you execute many familiar routines 
with a single command. Comprehensive 
LINE RENUMBER including GOSUBs 
and GOTOs, LOAD, EDIT, and RUN 
machine code programs; INSPECT the 
ZX81 and TS1000 system routines; COPY 
these routines into RAM and PATCH or 
EXTEND them; FIND a given piece of 
Basic code and replace all occurrences of 
it; move blocks of Basic lines with EDIT. 
Examples and instructions. By Hewson 
Consultants. 


P. Nethercot & R. Rackstraw 
ZX81 CESIL Compiler 
16K RAM. Tape only. 3. 

Run CESIL on your ZX81. Up to 40 
CESIL lines per program. Facility for 
modify, list, printout listing, etc. Menu 
driven. Available soon. See note in Sup- 
pliers Directory. 


Oxford Computer Publishing Ltd. 
Machine Code Test Tool for Spectrum 
and TS2000. 
16K or 48K RAM. Cassette: $19.95. 
The ultimate tutor and debug pro- 
gram. Lists and displays Machine Code 
instructions as they are written. Ideal for 
both the novice and the expert. With full 
32 page tutorial. Hex-decimal conver- 
sion as standard. Superb “user” design 
graphics feature. 


Peak 
String 
2K RAM. Listing: $2. 

A routine you can add to your pro- 
grams to search for commands, words, 
phrases, names and phone numbers. 
String can help in any program where 
you need to recall words for correction 
or information. 


Renumber 
2K RAM. Listing: $1. 

A line renumbering routine for your 
programs. Allows you to insert quickly 
new lines and program statements. 


44 


Pleasantrees Programming 

Basecon 

16K RAM. Cassette: $9.95 plus $1.50 
s&h. 

Base conversion tool for machine lan- 
guage programmers; converts numbers 
between binary, octal, and hex; accepts 
any base up to base 16 and returns its 
base 10 equivalent or vice versa; whole 
or fractional numbers; detailed 
instructions. 


Graphics: A to Z 
$17.95 pp. 

Manual just on programming graphics. 
Topics include: animation, 3-D plotting, 
diagonal scrolling, writing and dissecting 
uneditable programs, MC shortcuts, and 
more. Packed with listings. Invaluable 
Memotech HRG chapters, including: 
comprehensive subroutine explanations, 
MC control, and complete firmware dis- 
assembly, Available 5/83. 


Programming Form Pads. 
$2.19 each plus $.75 per pad s&h. 

50 sheets, 8 1/2 x 11; printed with all 
lines including edit lines on premium 
eraseable paper. Specially printed Win- 
dowcard comes with each pad making 
line reading simple. 


G. Russell Electronics 
Key 
16K RAM. Cassette: $10 pp. 

Short program of four powerful 
machine language routines unlocks com- 
puter power to let you: 1) SAVE and 
LIST any ZX81i/TS1000 cassette pro- 
gram—even those normally unLISTable, 
unSA VEable cassettes. 2) LOAD two pro- 
grams, one after another and 3) MERGE 
them into one program. 4) Display num- 
ber of bytes remaining in RAM for pro- 
gramming at any time, instantly. 


Sinware 
Z Extra 
16K RAM or more. Cassette: $19.95 plus 
$2 s&h. 

A display manager and data filing pro- 
gram in machine code. Provides a full 
screen editor for a direct keyboard-to- 
screen link with full editing and plotting 
features. Filing and display facilities per- 
mit page-flip animation or horizontal or 
vertical scrolling through windows. Stores 
up to 99 screens in 64K. 


Step 
16K RAM. Cassette: $14.95 plus $2 s&h. 
A debugging tool for Basic program- 
mers. Provides single stepping through 
program lines or conditional or loop 
breakpoints. Basic display and reports on 
up to 15 expressions available after each 
step. Written in machine code to fit in 
upper 3K of your 16K RAM. 


Z-Tools 
16K RAM or more. Cassette: $14.95 plus 
$2 s&h. 

A machine language extension to the 
Basic editor that allows you to merge two 
Basic programs, to renumber, copy or 
delete blocks of lines, and to verify a 
program on tape against memory. Avail- 
able for the upper 2K of a 16K RAM 
pack or for the 8-10K block of an expand- 
ed memory. 


Softest 

ZX8&1 Test 

1K; up to 16K RAM. Cassette: $10. 
Suite of test programs. Tests, dis- 

plays, memory, keyboard and primary 

basic functions. 


Softsync, Inc. 
Machine Code Test Tool 
16K RAM. Cassette: $19.95. 

This package contains a utility program 
and a complete tutorial course book 
which enables you to enter, test, display, 
and debug hexadecimal machine code 
routines simply and quickly. This tool is 
constructed to help the beginner who 
wishes to explore machine code program- 
ming as well as the expert who wants to 
polish up. 


Programmers Toolkit 
16K RAM. Cassette: $14.95. 

Toolkit provides machine code routines 
to help you write better, faster, and more 
elaborate programs. Renumber program 
lines, SEARCH and REPLACE any char- 
acter, insert a WAIT condition to stop 
the program until a signal is input, 
HYPER GRAPHICS MODE, and more. 
“Compatible” with the Graphics Kit and 
can be loaded with it, making a powerful 
programmer’s aid. (Licensed from Paul 
Holmes.) 


Soft Way 
Utilities Tape 3 
16K RAM. Cassette: $10.95. 

Menu driven. Manipulates assembly 
language programs in decimal or hexa- 
decimal code. Stores assembly programs 
in protected memory safe from the NEW, 
LOAD, SAVE and CLEAR. UT isa short 
version of Utilities for fast transfers and 
displays. Add assembly programs and con- 
tinually increase the capabilities of UT. 


Spectra Computer Problems 
Instructional Packette series 

Packettes are developed to help 
troubleshoot and improve the computer. 
They deal with specific subsystems and 
supply an exhaustive treatise covering all 
possible malfunctions, their solutions, 
and, in most cases, plans for constructing 
components to improve that system. 
Packettes endeavor to supply information 


SYNC Magazine 


0 


J 


Enter your programs Faster & Easier 
with the E-Z Keyboard... | 


At last, a large 60 key “Tactile Feel” 
keyboard that plugs into the same 
connectors as the existing keyboard 
on your ZX81 or your Timex-Sinclair 
1000. 


in the 
CLICK! 


ny ee Se 
pg E enema TS 


Hear the CLICK and feel a SNAP for every Only 


key pressed! (Tactile Feedback). 


BSR CAT iT 
: 5 > 
See as. SoH aR, iR ese : 
Cie SE CONT BS SERRA BERT PRI AE 
iN ESA. Bt ISLS SORE BBE 
eee 6.28 


orem ot (E-z KEY 


E-Z Key 60 has the following features: 
- 60 Keys - Legends in 3 colors on the base 
- Molded legends on key tops 

- 8 Automatic shift keys (no shifting required) 
for edit, delite, single and double quotes,colon, 
semi-colon, function and stop. 

- 2 Shift keys - Numeric key pad - 5” space bar. 
E-Z Key 60 requires no wiring (just plug it in) 
and can be adapted to fit the XZ80 or the 
MicroAce (8 KROM). The Mounting base 
measures 10”x4". Cables and instructions are 
included. 


SWITCH SPECIFICATIONS: 


Key tops measure .4” x .3” - spaced at 
%" intervals between keys. Life = 10 
million operations, typical. Force = 3. 
oz. Travel = .040”. Dome switch, button 
type with arm to give .040” travel. 


STAINLESS DOME 


DOME CAGE 


PWB SUBSTRATE 


E-Z HET 


SUITE 75 A, 711 SOUTHERN ARTERY 


QUINCY, MASSACHUSETTS 02169 
(617) 773-1187 


Q495 


A custom made enclosure (shown above) is 
also available for your computer and E-Z Key 
60 keyboard. 


Measurements: Price: 
ECTE RS a 5 we $25.00 
PO FAA 502K 8" kc es $30.00 


WATCH FOR THESE NEW PRODUCTS! 


JOYSTICK: Joystick kitthat requires no wiring 
and will fuction like the arrow keys &@ on your 
computer. 

E-Z Key 40 Replacement flat keyboard with 
embosing around each switch and 3 color legends 
and graphics as existing keyboard (plug in 
replacement). 


Delivery 4-6 weeks. 90 day warranty. 


eee] (sew o 
aa [ip awe fo 
Toil une san sa por ona] 
TRES 
Zoo 


O Check or 
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Charge to my: 
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Card # 


Mass, res. add 5% sales tax 


Total 


Expires 
Send to: Signature 
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Suite 75 A 
711 Southern Artery Address 
Quincy, MA 02169 
City State Zip 


Programming, continued... 


on all the Sinclair computer series. 
Included are: 

Complete Video. $7. Covers video 
trouble shooting tips, UHF conversion, 
fine tuner for the RF modulator, direct 
and reverse video. 

Complete Keyboard. $7. Covers decod- 
ing a standard ASCII keyboard, decoding 
shift keys, reset, and repeat keys, and 
keyboard beeper. 

Complete LOAD and SAVE. $7. 
Covers troubleshooting tips and plans for 
LOAD monitor and signal filtering. 

Complete Memory. Coming soon. 
Memory pack trouble shooting and plans 
for constructing your own memory pack, 
EPROM reader and extending the mem- 
ory of the 16K RAM pack up to 64K. 


SyncMaster 
Screen Machine 
16K RAM. Cassette: $14.95 + $1 s&h. 
Program inputs like on mainframe 
computers. 1K ML sub-routine allows 
inputs anywhere on screen, complete er- 
ror checking, automatic formatting 
(dates, decimals), and advance directly 
to next prompt. Easy interface to pro- 
grams; one string and a gosub. Saves 
valuable programming time and looks 
more professional. 


SOFTWARE 
DR. FLOYD™ 


Psychoanalysis by computer? - well not quite 
but Dr. Floyd will carry on a conversation 
with you using psychoanalytic techniques 


giving the appearance of artificial 


intelligence. Requires 16K RAM. $10.00 


GRAPHICS PAC | 


An introduction to Sinclair graphics - 
includes: 2 random picture drawers, allow £ A | 
creation of “Pop” art. A screen formatter {PH moo n] 


which allows placing any character 


anywhere on the screen. Complex pictures 
may be created & saved. Doodler allows line 


art drawings to be created & saved. 
Requires 16K. $10.00 


Machine Language Helper 
16K RAM. Cassette: $14.95 + $1 s&h. 
Easily enter ML listings, programs. 
Convert hex to decimal. Examine 
ROMs. Manipulate memory any way 
you can think of; move blocks, bytes; in- 
sert, delete ranges of memory. Bring out 
the full power of ZX/TS machines. 


Syncware Company 
Multiprogram Demo 
16K RAM. Cassette: $10. 

A tutorial on a technique for storing 
multiple programs in 16K or more 
RAM at the same time. No MC knowl- 
edge assumed. Cassette illustrates the 
technique with four games programs: all 
programs listable. Games are condensed 
versions of “Syncwars,” ‘‘Minotaur,”’ 
and “Blackjack.” 


Timeworks 
Beginning Game Design (1401). 
16K RAM. Cassette: $16.95. 

Game design of “Lunar Lander,” a chal- 
lenging space game. Kit shows in detail 
what should go into a good game pro- 
gram; covers display, design, and anima- 
tion. Based on our 8 step procedure of a 
“Top Down” design approach: General 
concept, Displays, Flow Chart, Algor- 
ithms, Writing the Program, Type in the 
Program, Debug the Program, Modify the 
Program. 


™ 


DR. FLOYD 


SIN 16 


16K Byte RAM 


HAIKU 


™ 


Includes “Jargon” - a jargon word generator. 
“Animal” - a fun game where the player 
teaches the computer all about animals. 
“Story” - the computer writes stories using 
the players input names, places, etc. Can be 
very funny for kids, “Haiku” - the computer 
composes HAIKU like poetry. Requires 16K. 


$10.00 


in this magazine 


All shipping included 
Phone orders: CALL 


SPECIAL! Order all 3 programs 


for only $25.00!! 


is replacement guaranteed. 


PROPOS TECHNOLOG 


information on card. 


DEALER INQUIRIES WELCOME 
350 N. Lantana Ave., Suite 821 e Camarillo, CA 93010 


ORDER TODAY!! 
Send check or Money Order 


Calif. residents add 6% tax. 


805/482-3604 24 nrs. 


Intermediate Game Design (1402) 
16K RAM. Cassette: $16.95. 

Game design of “Slot Machine,” a game 
of skill and chance. Kit shows in detail 
how to design a more sophisticated game. 
This is not, however, a typical slot 
machine program. A few surprises are 
thrown in. Uses the “Top Down” design 
approach; covers use of arrays, FOR- 
NEXT loops, subroutines, and how to 
make RND work for you. 


Intermediate Data Handling (1403) 
16K RAM. Cassette: $16.95. 

The design of a fundamental Data Base 
that can be used for anything from a 
mailing list to a date reminder. Uses the 
“Top Down” design approach; covers 
information entry and retrieval, tape stor- 
age, string arrays, and sorting techniques. 


Troiano Software Company 
Starter Software Packages 
2K RAM. Listing: $4. 

14 programs to introduce both the 
Sinclair and the language Basic. The 
programs cover several different topics 
including education, games, and graph- 
ics. As your programming skills in- 
crease, these programs will produce a 
solid format for your own software. 


ZX81-TIMEX-SINCLAIR 1000 ÇIN 16 


16K Byte RAM 
$3 .00 Shipping 
included 


This attractive memory expansion allows 
you to run virtually all the programs written 
for the ZX-81 or Times-Sinclair 1000. SIN16 
is fully compatible with other plug-ins and is 
superior to other RAMs because it uses 30% 
less power. This extends the product life to 
many years. We use the best gold- plated 
connector on the market, so SIN16 will not 


These are the BEST BUYS cause loss of programs due to poor 


connection to the computer. Get real power 
for your computer. 


ORDER A SIN16 TODAY! 
SPECIAL! - Order a SIN16 and get any one 
of the 3 programs FREE! 

Just list the one you want. 


10 day return privilege on all hardware - 


6 month parts and labor warranty. 


This is a TRUE BARGAIN! DON’T MISS IT! Eor credit card orders. include all Extended service always available - 
All software is on high quality cassettes and 


WE SERVICE WHAT WE SELL. 


PRG-DLR 
2K RAM. Listing: $3. 

Cassette program directory allows the 
user to catalog programs that were 


stored on tape. Program name can be 
added/changed/deleted. 


Tree Systems 
Multi-Forth 
2K RAM. SASE for information. 

This is a multi-tasking Forth with most 
of the standard fig-Forth words. The lan- 
guage is perfect for control applications: 
DC servos, A/D converters, furnace con- 
troller, read temperatures, etc. EPROM 
on circuit board. Switch between Basic 
and Forth. 


T-S Systems 
Multiple Screens 
16/48K TS2000. Listing: $4 plus large 
SASE. 

Utility type program which gives the 
power to store 3 different screens and 
remembers any of them in microseconds. 


2-Bit Software 

Turning the Truth Tables 

2K RAM. Cassette: $9.95. 

_ First in a series on the principles of 
programming. No lectures or lessons. 


Have some fun as you find out what 
“and,” “either,” “or,” “if,” and “then” 
mean to a computer. Some things may 
not be so logically impossible as you might 
think. Or so possibly illogical. Ages 12 
and up. 


UAS 

Data Base Conversion. (C8003). 

16K RAM. Cassette: $3.95.; listing: $1.00 
Input your number in any of the fol- 

lowing data bases: decimal, binary, octal, 

hexadecimal. Get the equivalent in the 

other data bases. 


Basic Instruction. (L3017). 
16K RAM. Cassette: $3.95. 

Detailed program listing for Integer 
program C3017 (see games) to illustrate 
various advanced programming tech- 
niques. Improve your programming skills 
while writing a new game program to 
capture your imagination. 


Decision Tables. (C8000). 

16K RAM. Cassette: $5.95.; listing: $1.00 
Eliminates redundancy in your pro- 

grams. The instructions for this program 

include a section on the way to convert 

from flow diagrams to decision tables and 


back. The program will help you to trima 
15 by 15 table resulting in considerable 
memory savings. 


The Ultimate Blackwood 
16K RAM. Cassette: $12. 

LODAB merges basic programs, re- 
numbers lines, and tells the user the size 
of each program. A demonstration pro- 
gram is included, as is a very complete 
user’s manual. 


Assemblers, 
Disassemblers, 
Compilers, Monitors 


ACS Software 

Ultraviolet 

Spectrum 16K/48K RAM. £7.50 plus 
s&h. 

Z80 assembler. All Z80 instructions 
correctly assembled. Supports EQU, 
ORG, DEFB, DEFW, DEFS, etc. Code 
can be assembled and then relocated. 


Continued on page 118. 


HEAR THE POWER OF 
YOUR TIMEX/SINCLAIR. 


Features: 


e Programmable speech/and sound effects. 


e Amplifier and Volume Control. 
e “Piggy Back” expandability. 
e Speaker output jack. 


e Power input jack for expanded system operation. | O 
e Professionally written software examples included 


on cassette tape. 


e Complete detailed instructions are provided being | draft. 
both educational and informative. 


e Compact, reliable and safe. 
e All for $89.95 


May/June 1983 


HEAR THE POWER... 


The 
[rrot , 


R.1.S.T. Inc. 


It's been said that the future belongs to those who understand 


ing them talk to you. 


computers. If that’s true, what better way to do this than by hav- 


Now you can. Quickly. Simply. Economically. 

Let the power of your Sinclair ZX80/81Tm or Timex Sinclair 
1000T speak for you now. Through R.I.S.T. Computer Com- 
ponents, Inc. The Parrottw - your ZX80/81 or TS1000 can 
speak...clearly, consisely and without limit. 

R.I.S.T. has developed a state of the art voice synthesis module 
you plug in. The Parrott utilizes allophone concatenation to syn- 


thesize speech, with limitless vocabulary. Sentences, and any 
English language word can be created. 

Best of all, The Parrott is affordable. For $89.95, your ZX80/81 
or TS1000 can give you the voice of the future...today/ 


ie Se E e a A Ee S 


.l.S.T. Computer Components, Inc. 


| My computer is 
| Enclosed is $ 


fo fic eth ba 


| P.O. Box 499, Ft. Hamilton Station, Brooklyn, NY 112090499 
2X80 


O TS 1000 
module(s) at $89.95 ea., plus 


LJ zx81 


$4.00 Shpg. ea. (includes complete documentation). 
| N.Y. State Residents Add 8⁄4% Tax ($7.40) 


9V Power Supply (optional) $9.95 ea. (Required for ZX80 or 


| Available in Canada thru Integrated Data Systems 


| 11 Brighton Avenue, Toronto, Canada M4M 1P3 
For orders outside continental U.S. & Canada please send bank 


| NAME 


| ADDRESS APT. 


| CITY 


| 
| 
| 
| 
expanded system operation). | 
| 
| 
| 
| 
| 


STATE er AP A 


47 


Using Your Computer: Programs 


Graphics Programs 
and Aids 


ACS Software 

Viewpoint 

Spectrum 16K/48K RAM. £6.50 plus 
s&h. 

3-D graphics package. Routines for 
rotating wireframe images in three dimen- 
sions. Written in Basic for the user to 
modify to his own requirements. 


American Micro Products, Inc. 
Sketch-A-Screen 
16K RAM. Cassette: $17.95. 

Two programs: 1) a computerized 
sketchpad with eight directional controls 
for using the plotting cursor; 2) a scram- 
bled letter puzzle in which the user must 
arrange the letters in a given order using 
four direction controls. 


Apropos Technology 
Graphics Pac 1 
16K RAM. Cassette: $10 pp. 

An introduction to Sinclair graphics 
includes: 2 random “pop” art picture 
drawers; 2 doodlers which allows line art 
drawings on the screen. A_ screen 
formatter allows drawing with any of the 
computer’s character set. All creations 
may be saved on cassette. 


Calliope Software 
Metagraphics 
16K RAM. Cassette: $12.95. 

Create elaborate drawings with over 
2000 different graphics characters and 
backgrounds. Simple enough for children, 
yet will delight any adult. Machine code 
and Basic. 


Data-Assette 
Kayde High Resolution Graphics. 
$59.95, 

Graphics Board fits inside the TS1000 
or ZX81. Complete with a pre-pro- 
grammed 4K Graphics ROM. Will give 
an extra 450 graphics and with the in- 
verse there are over 900. The board has 
facilities for either 2K RAM for user de- 
finable graphics or 4K ROM for a 4K 
Tool Kit Chip. All graphics are software 
controlled. 


48 


Kayde Electronics High Resolution 
Graphic Software. 

16K RAM with Graphics ROM. Cas- 
sette: $19.95. 

Three programs written in machine 
code give the true arcade action you 
have been waiting for in a micro- 
computer. Space Invaders, Centipede, 
and Peckman. Extremely difficult and 
very fast moving. 


Digital Integration 
ZX81 High Resolution Graphics Pack 
16K RAM. £38.95. 

Fully programmable 256 x 192 pixel 
high-resolution display. Hi-Res-Basic 
Monitor in 2K EPROM includes 
PAGE, PRINT, PLOT, (inc. LINE), 
SCROLL, INV, CLS, COPY. Includes 
lower case character set for word 
processing. Full dynamic control of 
USER-DEFINABLE GRAPHICS. Fits 
between ZX81 and RAM pack. No addi- 
tional power supply necessary. Hand- 
book included. 


Friendly Computer 
Draw and Recall 
16K RAM. Cassette: $9.95. 

Draw on your TV screen and store 
your drawing to be recalled later. Simi- 
lar to “Turtle” graphics. You enter an 
angle and a distance, the program draws 
the line. Other functions are: move with- 
out drawing, erase, delete, display screen 
position. 


Graphics charts for Timex/Sinclair. 


$4.95 per pack. 

Printed forms allow you to easily plan 
your displays on paper before coding; 
save time and tedium. A full 8 1⁄2” x 11” 
size, they are printed with a grid, line 
and column numbers, and X, Y co- 
ordinate numbers. Packs of 100. 


Gladstone 
Memotech Fisk 
Memopak High Res Graphics Pack (A70). 
$144.95. 
4K Graphics ROM (D13). $69.95. 
Gives 448 extra preprogrammed graph- 


ics symbols, including lower case letters, 
bombs, bullets, rockets, tanks, complete 
set of invader graphics. Has a spare holder 
on the board which will accept a further 
4K ROM/RAM. Can be fitted with 
1K/2K RAM for user definable graphics. 
Can use the 4K Toolkit (D14) in the 
socket. 


Nick Godwin 
Movies 
16K RAM. Cassette: $5 or 3 pp. 

Enables you to create and use special 
moving graphics effect with minimum fuss 
or effort. Comprehensive drawing board 
enables creation of images frame by 
frame. Efficient storage system allows 
100s of frames to be stored in 2000 re- 
served bytes. 


Hensley and Associates 
Animated Graphics 
Course 

16K RAM. $5. 

The amazingly simple step-by-step sec- 
rets to creating your own “joystick” ani- 
mated graphics type games! Free with 
order of any other Hensley product listed 
in the Buyers Guide sections. 


Programming 


Kopak Creations, Inc. 
Grafix | 
16K RAM. Cassette: $14.95. 

With this program you can draw com- 
plex images and save them on tape or 
put them in your own program. 


Wm. Maples 
Kaleidograph 

Kaleidoscopic simulation in a 22x22 
pixel display composed of randomly 
selected graphic pixels with 2 axes and a 
center of symmetry. 


Memotech Corporation 
Memopak High Resolution Graphics 
16K Minimum. $124.95. 

The Memopak High Resolution 
Graphics, with up to 192 by 248 pixel 
resolution, enables display of “arcade 
game” style graphics through its res- 
ident 2K EPROM, programmed with a 
full range of graphics subroutines. 


SYNC Magazine 


RR DM DW BP KS RWW BW RW 


a SZ $149 COMPLETE 
RST SOL z = S 2 $119 KIT 


Sinclair ZX81 or Timex 1000 


Available either completely assembled, ready 
to just plug-in or in an easy-to-assemble kit 
with the following features: 

e Interfaces with your Shugart SA 400 or 
any equivalent 35 or 40 track drive system 
(please specify when ordering) e Loads 16k 
program reliably in seconds e Compatible 
with all RAM expansions e Direct plug-in to 
rear connector or bus expansion e DOS on 
2/32 ROM e DOS commands from direct 
mode or from your BASIC program. 

e DOS commands: 

INIT DSAVE DLOAD DIR STAT 
CREATE WRITE READ KILL NEWD 


A Name You Can Depend On 


A CENTRONIC INC. 1101 Bristol Road, Mountainside, N.J. 07092 


Please Send ———— floppy interfaces. 
CI Completely assembled at $149 each C Kit form at $119 each 


| am using a CJ 35 track drive (J 40 track drive 


C Check enclosed I Money Order enclosed 
Hee my O VISA or O Master Charge 
Expiration date 


Please send details on other new products: L Package Floppy Disc Systems 
L] Keyboard Beeper (J Tape Loading Aid © 16K and 64K RAM Packs. 


Name 
Address 
City 
otate/Zip 


Add $3.50 for shipping and handling. N.J. residents add 6% sales tax. 


e Check e Money Order e VISA e Master Charge 
Oe PT Pt Pe ey | nT | | 


Using, continued... 


Ken Osborne 
ZX81 Window. 
1K RAM. £3.99. 

Define any number of “windows” on 
screen. Scroll characters against any 
background or roll off 1 side of screen 
onto the other. (wraparound effect 
including top to bottom). MC routine 
makes things “fly” around the screen 
when called from Basic. 


Orbyte Software 
Graphics I 
16K RAM. Cassette: $14.95. 

Draw, change, and redraw. Begin and 
end lines at any point. Draw a design and 
then move the entire pattern to another 
screen location. Designs can be memor- 
ized by the computer and recreated again. 
Coordinates of the pattern will be printed 
out at the end so that you can again 
create the same design. 


Rave Research 

Grif Graf 

Kit: $19.95; assembled: $24.95. 
Programmable graphics generator. Fits 

inside computer. All our software is avail- 

able modified for this circuit (same 

prices). Generates any graphics you can 

dream up. 


Simulsion 
Etch-a-Screen 
2K RAM. Cassette: $9.95. 

Two drawing programs. Etch-a-Screen: 
Draws text and graphics in any direction; 
instantly and easily generates pictures; 
SAVEs on tape or COPYs to printer; 
with 16K RAM, it can store 19 video 
slides and then display them in rotation 
with selected pauses. Crazy Painter: 
Draws random patterns on the screen with 
wild brush strokes and manic speed. 


Hey, There! 
2K RAM. Cassette: $9.95. 

Two display programs. Banner: Con- 
tinuously scrolls a banner of up to 700 
giant letters smoothly across the screen; 
clear, SAVE on tape, or add a message 
with a single keystroke. Message Board: 
Displays the first line of up to twenty 
messages; press a call-letter to view any 
message. 


Softsync, Inc. 
Graphics Kit 
16K RAM. Cassette: $14.95. 

23 Machine Code routines to add 
graphics to your own programs. draws or 
deletes multicharacter shapes, creates 
borders, includes foreground and back- 
ground functions which makes shapes 
appear to emerge and fade behind other 
shapes plus reverse, fill, scroll, and many 


50 


more. The routines are super fast and 
when loaded occupy about 2K RAM at 
RAMTODP. (Licensed from Paul Holmes.) 


Graphics Six Pack 
1K RAM. Cassette: $14.95. 

Six great games on one cassette. List- 
ings of the programs and instructions on 
how to upgrade and modify them are 
included in documentation. Twirly 
Invader: Shoot the man fom Mars. Wind- 
ing Stairway: Navigate through the wind- 
ing stairway. Astro Dodger: Avoid flying 
space debris. Cross The Road: Avoid 
being hit by passing automobiles. Plus 
Alien Invaders and Defend. 


T-S Systems 
Hi-Res Graphics in Action 
16/48K TS2000. Listing: $6 plus large 
SASE. 

Takes advantage of the impressive hi- 
res graphics capabilities of the TS2000. 


Multi-Color Images 
16/48K TS2000. Listing: $2 plus large 
SASE. 

This small Basic program makes exten- 
sive use of the color and hi-res graphics. 
At the execution of this program a pattern 
is drawn which changes continuously in 
shape and color. 


Color Hi-Res Helper 
16/48K TS2000. Listing: $4 plus large 
SASE. 

A utility program in MC to help you 
work properly with graphics. 


Vidiom 
Character Set Graphics Kit 
$3.00 and SASE. 

Visually spaced, large format letters, 
numerals, and punctuation. Not a pro- 
gram. A fast, easy to use system that gives 
professional look to your display. De- 
signed for ZX81/TS1000, but can be used 
for any computer with graphics symbols. 
Instructions and tips with kit. 


Bob Woish 
Compu-Pen 
2K RAM. Cassette: $3; listing: $2. 

An “Etch-a-Picture” type program in 
which you have a choice of characters 
(Compu-Pen I) or high resolution drawing 
(Compu-Pen II). Beautiful displays, de- 
signs, messages, etc. now possible. Uses 
full screen. 


Word Software 

The Drawing System 

16K RAM. $17.95 (10% off if SYNC is 
mentioned). 

MC drawing program that features 8- 
directional drawing, 3 drawing modes, 
full ZX character set, ‘smart’ cursors, 
line and screen fill, output to ZX or CAI 
printers, screen overlaying from tape or 


memory, and selectable speed repeating 
keys. 


Horizon Simulations 
Draw-it 
16K RAM. Cassette: $5. 

This program will allow you to create 
12 screens of pictures and save them on 
cassette or print them on a printer. You 
can later modify the picture later. 


Educational Programs 


American Micro Products, Inc. 
Trigonometry 
16K RAM. Cassette: $17.95. 

Uses a flash card approach to supple- 
ment high school math classes and teach 
the user about calculations involving tri- 
angles and parallelograms with numerous 
graphical examples. 


Arithmetic 3 
16K RAM. Cassette: $17.95. 

A flash card style learning aid for pre- 
schoolers and elementary school children. 
Aids in learning the fundamentals of addi- 
tion, subtraction, and multiplication. 
Oversized numbers make this program 
especially easy to use. 


Home Educator | 
16K RAM. Cassette: $17.95. 

A flash card style program that allows 
the user to design and write up to eighty 
flash cards for one package and then save 
them. This program comes with the states 
and their capitals entered as a beginning 
set of flash cards. 


Algebra 
16K RAM. Cassette: $17.95. 

A flash card style learning aid for help- 
ing the user learn and study high school 
level algebra. Specifically, the program 
deals with the solving of equations with 
one or two unknowns. 


Hangperson 
16K RAM. Cassette: $6. 
48K Spectrum. 

Content for “skeleton” with instructions 
in REMs for teachers to add their own 
material. Highly polished hangman format 
will set 50 words/phrases with graphic or 
verbal clues. 


AVC Software 
Electricity 

16K RAM. Cassette: $6. 
48K Spectrum. 

A highly-polished hangman format test 
game with 50 words/expressions; each 
with cryptic graphic or verbal clue. The 
test material is 10-12th grade eiectricity 
and magnetism. 


SYNC Magazine 


Forces 
16K RAM. Cassette: $6. 
48K Spectrum. 

A highly-polished hangman format test 
game with 50 words/phrases/expressions; 
each with cryptic graphic or verbal clue. 
Test material is 10-12th grade dynamics 
and statics. 


Biology 2 
16K RAM. Cassette: $6. 
48K Spectrum. 

A highly-polished hangman format test 
game with 50 words/expressions; each 
with cryptic graphic or verbal clue. The 
test material is 10-12th grade plant and 
general biology. 


Count-Down 
16K RAM. Cassette: $6. 
16K Spectrum. 

Content free “skeleton” with instruc- 
tions in REMs for teachers/parents to 
add their own material. Based on a rocket- 
launch game; allows you to set 10 ques- 
tion tests (random non-repeated ques- 
tions) at four levels from a 60 item pool. 


Tables 
16K RAM. Cassette: $6. 
16K Spectrum. 
A rocket-launch test game. Four levels 


SKINS ð QUARTER 1 
COLPHINS ð 
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COWN 2 1 TO GO 
SKINS HAVE BALL 
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3K INS COACH ENTER OFFENSE 
FORMAT ION 


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POWER I 
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WISHBONE 

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SELECT A PLAY 


4 


WHAT’S YOUR COACHING PHILOSOPHY? 
The Oklahoma option, USC I, or a wide open pro 
style pass offense? Will you follow modern trends 
like the three man front and the nickle back? 

This complete football simulation lets you make 
all the coaching decisions, while the computer refs 
the game, runs the scoreboard, and even prints out 
a stat sheet at the end of the game! Play against a 
friend or the computer. For 16k RAM Timex 1000 or 
Sinclair ZX81. $14.95 


May/June 1983 


of 10-question tests; questions coming at 
random from a 60 item pool, but not 
repeated. 


Similes 
16K RAM. Cassette: $6. 
16K Spectrum. 

A rocket-launch test game. Four levels 
of 10-question tests; questions coming at 
random from a 60 item pool, but not 
repeated. “as .. . as a so-and-so,” or “as 
such-and-such as . . .” 5-9th grade. 


Phys Prob 
16K RAM. Cassette: $6. 
16K Spectrum. 

A rocket-launch test game. Four levels 
of 10-question tests; questions coming at 
random from a 60 item pool, but not 
repeated. Solve standard physics data 


problems using random integral figures. 
9-12th grade. 


French 
16K RAM. Cassette: $6. 
16K Spectrum. 

A rocket-launch test game. Four levels 
of 10-question tests; questions coming at 
random. English-French and French- 
English vocabulary. For end of year 
study. 
repeated. 


REVERSE 


THE VIDEO REVERSER 
Reverses entire screen—white letters on a black 
background. Reduces eyestrain. Small—fits inside 
case. Works with all programs. A switch can be 
installed allowing operator to go back to normal 
video if desired. Easy to install—complete instruc- 
tions included. USES NO MEMORY. $15.00 


SEND TO: SIGHT AND SOUND ELECTRONICS 
1120 Bailey Hill Rd #10 
Eugene, OR 97402 
(503) 485-6274 


( ) FOOTBALL $14.95 
( ) BIORHYTHMS $ 7.95 
( ) VIDEO REVERSER $15.00 


All prices include shipping and handling. 
Please add $3.00 for C.O.D. orders. 


If paying by check or money order, indicate amount 
enclosed: 

If by Master Card or Visa, complete the following: 

Exp. Date: Card # Bank #(MC only) 
SIGNATURE 

NAME 

ADDRESS 

CITY STATE ZIP 


PHONE IN CREDIT CARDS FOR RUSH DELIVERY 


Angles 
16K RAM. Cassette: $6. 
16K Spectrum. 

Provides practice, with some help, in 
use of protractor. 5-10th grade. 8x10 inch 
acetate simple protractor: $2 extra). 


Graph 
16K RAM. Cassette: $6. 
16K Spectrum. 

Plots any input x/y relation over wide 
ranges of values (user defined). Menu 
driven with printer option. 6-12th grade. 


Forensic 
16K RAM. Cassette: $6. 
48K Spectrum. 

A detection game involving standard 
chemical qualitative tests. 9-12th grade. 
Program won an award in the 1982 Sin- 
clair educational computing software 
competition. 


Compound 
16K RAM. Cassette: $6. 

A game for 1-6 players involving “pay- 
ing for” qualitative analysis data to deter- 
mine the target substances. 9-12th grade. 


Atoms 
16K RAM. Cassette: $6. 

A game for 1-6 players involving drill 
for chemistry and physics courses on 


FRANK 

SIORH’YTHMS FOR 4/1983 

123456 739111111111122222222223 
9123456 7899 123485 7699 


z 


ENTEN ALL. OATES IN NUMGERS: 


UHAT YEAR ARE SIORMHYTHHS 
IREO? 1983 


POR UHAT MONTH ARE B IORHYTHNS 
O@SIREG? 4 


IS THERE ANY PAAT DCULAL 
INTEREST 7 (Y OR N) YES 
- UHAT ORY 7 


oRVY OF 


KNOW YOUR GOOD DAYS 
KNOW YOUR BAD DAY 
Know the days you should stay in bed. Biorhythms 
is a program that computes and plots three of your 
ever changing life functions for any time after your 
birth. For 16k RAM Timex 100 or Sinclair ZX81. 
$7.95 


51 


Using, continued... 


nuclear and electronic configurations. 10- 
12th grade. 


War Game 
16K RAM. Cassette: $10. 
48K Spectrum. Cassette: $12. 

Named after famous British anti- 
nuclear war film. (a) presents relevant 
facts of Hiroshima; (b) offers relevant 
data pages; (c) provides a simulation in 
which the user must explore the effects 
of nuclear explosions on London in a 
range of variable conditions. Detailed 
instructions, notes, and references. 


Fortune 
16K RAM. Cassette: $6. 
16K Spectrum. 

Fortune telling program gives graphic 
displays, including zodiac sky for input 
birthdate and neat random text output. 
For fun and fund-raising events. 


Human | 
16K RAM. Cassette: $6. 
48K Spectrum. 

A highly-polished hangman format test 
game with 50 words/expressions; each 
with cryptic graphic or verbal clue. Test 
material is 8-10th grade respiration, skele- 
ton reproduction (human biology). 


Human 2 
16K RAM. Cassette: $6. 
48K Spectrum. 

A highly-polished hangman format test 
game with 50 words/expressions; each 
with cryptic graphic or verbal clue. The 
test material is 8-10th grade excretion, 
digestion, health (human biology). 


Biology 1 
16K RAM. Cassette: $6. 
48K Spectrum. 

A highly-polished hangman format test 
game with 50 words/expressions; each 
with cryptic graphic or verbal clue. The 
test material is animal biology. 


Christian Software 
The Ark (2100). 
2K RAM. Cassette: $12.95 plus $1.50 
s&h. 
David and Goliath (2200). 
2K RAM. Cassette: $12.95 plus $1.50 
s&h. 

Bible story games, multiple choice; 
answers with graphics. $2 for C.O.D. 


J. W. Collins 
Der Student. (DS1000). 
16K RAM. Cassette: $24.95 plus $1.50 
s&h. 

A self-study German language series of 
18 programs, reviews elementary vocabu- 


52 


lary and grammatical concepts. Helps the 
beginner get a good start and serves as an 
excellent supplement for rapid review. 


Computer-Wear Software 
Speed Reading 
16K. Cassette available 4/82. 

Designed by a (2,000 words per minute) 
speed reading record holder. Demon- 
strates concepts needed to improve your 
reading skills/speed. Actual mechanical 
techniques are synthesized to give you all 
the benefits once available only from 
expensive courses. Dealers invited. 


DRRP 
Proverbs 
16K RAM. Cassette: $5. 

An exciting game that teaches you the 
wisdom of Solomon through the Biblical 
Proverbs. Six degrees of difficulty; con- 
tains 60 proverbs; learn the proverbs as 
you discuss them with your opponents. 


Hebrew Tutor 
16 RAM. Cassette: $5. 

Learn the Hebrew letters, Hebrew spel- 
ling, pronunciation, and meaning without 
pain and struggle of a text book in an 
exciting and interesting game. 1 or 2 
players. 


D.S.B.C. 
Math Tutor 
16K RAM. Cassette: $6.95. 

Takes a child from simple counting to 
multiplication and division. Good for 
preschool through 4th grade. Kids love 
the gamelike format. Spelling Tutor 
available in March 83. 


Fisher-Marriott Software 
Bomber 
16K RAM. Cassette: £6. 

The fun tables practice game. Press a 
key to “bomb” the right answer. Includes 
3 other practice games: Numbervaders 
(“smash” the correct answers), Shootout 
(how fast can you answer), 4-in-a-row 
(tables naughts and crosses). Age 6 up. 


Bigspell 
16K RAM. Cassette: £6. 

Spelling practice based on word lists in 
“Classroom Index of Phonic Resources” 
by Herbert and Davies-Jones. Incorpor- 
ates 800 words divided into 115 tests. Each 
test covers a rule of spelling. Large lower- 
case letters used. Routine to correct mis- 
takes and help the pupil. Age 5 to second- 
ary level. 


Alphabet 
16K RAM. Cassette: £6. 
Uses big size upper and lower-case 


graphics. Sections to learn where the let- 
ters are on the QWERTY keyboard; to 
match lower-case with upper-case; to 
teach alphabetic order. Age 4 up. 


Wordplay 1 
16K RAM. Cassette: £6. 

Pit your wits against the computer. 
Games include: Word-cross: Score points 
each time you can get words to cross on a 
grid. Anagrams: Sort out the jumbled 
letters. Hangman: A neat version of this 
favorite. Use the word lists in the program 
or input your own. Age 7 up. 


Wordplay2 
16K RAM. Cassette: £6. 

Word games for 2-6 players. A trial of 
skill referred by the computer. Games 
include: Anagrams: Watch the computer 
jumble your word up, and your opponent 
sorts it out. Hangman: Avoid a sticky 
end. ZXrabble: Not really Scrabble, but 
you get 7 letters and must make the long- 
est word as fast as you can. Age 7 up. 


The Count 
16K RAM. Cassette: £6. 

To help the youngest child, and those 
who have not yet grasped the concept of 
number. Presents the basic ideas of num- 
ber and counting in a friendly and helpful 
fashion. 


Friendly Computer 
Trig Teacher 
16K RAM. Cassette: $9.95. 

Makes it easier, perhaps even fun, to 
learn the trigonometry functions avail- 
able in Sinclair Basic. Lots of graphics, 
pictures, examples. Covers SIN, COS, 
TAN, ACS, ATN, LN, EXP. Instruc- 
tion sheet includes a list of formulas to 
use in you Basic programs. Instructions. 


Gladstone 
Mathematics Packages 
16K RAM. Each package: $24.95. 
Package contains: 2 program cassettes, 
each with 8 lessons and games. Workbook 
with exercises and games and explanation 
for parents. Each package covers a grade 
and complements standard textbooks 
used in North America. Allows student to 
proceed at his own speed and level. Pro- 
grams are self-guiding. Packages num- 
bered by suggested grade level M1 
through M6. 


Flashcard (Z51) 
16K RAM. Cassette: $11.95. 

Memory aid and testing device simu- 
lating flashcards. You can put questions 
on one side and the answers on the other. 
Then give a random, nonrepeating test. 
Set up math, trivia, memory tests. You 


SYNC Magazine 


can set up, edit, and save cards. Menu 
driven. 


Heath Computer Services 
Multiplication Tables (SBG-568311). 
16K RAM. Cassette: $9.95. 

Allows user to choose the multiplier 
for up to 50 problems; a large graphic 
(YES) or (NO) will appear after each 
problem; incorrect problems may be 
listed, showing your answer and the cor- 
rect answer. 


Math Quiz (SBG-568312). 
16K RAM. Cassette: $9.95. 

Allows user to choose addition, 
subtraction, division or multiplication 
for up to 50 problems, with six difficulty 
levels; incorrect problems may be listed 
with your answer and the correct 
answer. 


Flash Spelling (SBG-568313). 
16K RAM. Cassette: $9.95. 

Enter up to 50 words for your child to 
learn to spell; you determine how long 
you want the word to be flashed; mis- 
spelled words may be listed showing 
your answer and the correct spelling; 
word files may be saved on tape. 


Hewson Consultants 
Countries of the World 
16K and 48K Spectrum, Cassette: £5.95. 
Makes full use of the Hi Res Graphics 
and Color capabilities of the ZX Spec- 
trum. Side 1: 16K version; 1) Displays a 
Hi Res Colour Map of the World, 2) 
Names all the countries, 3) Shows the 
position of each country and names its 
capital. Side 2: 48K version: 16K version 
plus, 1) Full Colour Map of the World, 
2) Displays the Population, currency 
and main languages of each country, 3) 
Gives statistics on the largest and small- 
est country, highest and lowest popula- 
tions, most and least densely populated. 


InfoCenter 
Massive. One 

Consists of over 40,000 bytes of inter- 
active instructional material plus 5 fast- 
action, machine code games (many varia- 
tions) each of which demonstrates one or 
more points regarding mass, inertia, 
momentum. Ages: 14 and up. Other edu- 
cational packages coming. 


Instant Software 
Geography Explorer-U.S.A. (456TS) 
32K RAM. $9.95-$19.95. 

This educational program of USS. 
Geography is comprised of three lesson 


sets includes: state’s capital, location, 
area in square miles, population and 
other information. There are lesson- 
planning suggestions and study aids. 
Makes learning interesting to children 
with animated graphic rewards. 


Teacher (455TS) 
16K RAM. $9.95-19.95. 

This educational program allows the 
child to do his lesson independently. A 
lesson of up to twenty questions with 
their answers can be stored. The 
teacher/parent will find it easy to make 
up the lesson and can change it as many 
times as wanted. Animated graphic re- 
wards for the correct answer. 


Intercomputer Inc. 
Eduventure I (ED3001) 
16K RAM. Cassette: $12.95. 

What greater reward can there be fora 
young school child than recess? This 
Eduventure requires the child to progress 
through a variety of “classrooms,” en- 
countering a new problem, puzzle or edu- 
cational game in each. Upon successfully 
making it through all the classes, the child 
reaches RECESS and a surprise finish. 
For grades K-3. 


ZX81 MACHINE CODE ? 


ZX. ASZMIC rom transforms Z X81 into an 


Assembly Language programming unit 


@ FULL~SCREEN EDITOR 


Sixteen shift keys take you into a world with a word processor feel. A blink cursor 
moves at your command to control insertion, rubout, line or string deletion, auto- 
scroll & page flip up or down, Text block operations. Ultra-fast editing. 


ø MULTI-FILE SYSTEM 


Declare as many files as you like, with any names you like, & they are automatically 
handled by the Operating System. Merge them, delete them, print, save & load them, 
& edit them by name., Superb flexibility with a simple but powerful system. 


ø TOTAL ASSEMBLER 


Full Z80 mnemonics, unlimited length labels, ORG & EQU directives, proper assembly 


listings with errors flagged on screen or printer. Relocatable object code & options to 


facilitate cross-assembly. Interpretive immediate execution available. 


ø POWERFUL DEBUG 


All the usual dump, modify, fill & copy commands; plus breakpoints, single stepping, 


context control, the convenience of interpretive execution mode, full use of the names 
in your program, Command Macros, autodump, and full operating system interface. 


ø HI~RES GRAPHICS 


255 x 144 resolution under program control to give you truly convincing graphics. 
With the power & flexibility of assembler you can really use this high definition. 


ø MUCH, MUCH MORE 


Repeat function on all keys. Double height & fine pitch on prınter. Cassette catalogue. 
120 page 'ASZMIC GOLD" manual with training exercises, discussion chapters, sample 
programs,documented monitor routines & reference info. Replaces Basic rom in Timex 
1000 & ZX81/80 computers. External mounting board soon available at reasonable cost 
ASZMIC transforms your computer into a genuine program development station for 
serious work at assembler level. Widely used & appreciated in Europe. Supplied for 
American 525 line t.v. standard unless otherwise requested, 


we U, S.A. Dealers wanted ***** 


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29, Campden Rd. South Croydon, Surrey CR2 7ER, U.K. 
I enclose $49 (please add $3 for bank charges if paying 
by dollar cheque). Please rush me ZX.ASZMIC+manual, 


NAME . 
Address 


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Using, continued... 


Eduventure IT (ED3002) 
16K RAM. Cassette: $12.95. 

The older child is ready for greater 
stimulation of the mind than was possible 
in Eduventure I. Solving this adventure 
requires skill and knowledge in a variety 
of academic areas. The child increases 
the speed of his thinking as he tries to 
avoid the worst of disasters: The 
Principal’s office. For grades 4-6. 


Eduventure IIT (ED3003) 
16K RAM. Cassette: $12.95. 

In this program Junior High School 
students have the opportunity to try to 
outsmart their teachers. They move from 
class class, facing in each a new situation, 
which is solved by applying their 
knowledge and skill. But quick thinking 
can lead to a shorter solution which brings 
a greater reward. Be careful. An unsuc- 
cessful attempt to outwit the teacher can 
have disastrous results! 


Eduventure IV (ED3004) 
16K RAM. Cassette: $12.95. 

The sharpest mind is severely tested in 
trying to negotiate this maze of difficult 
situations. Each one is different, requiring 
the application of the student’s knowledge 
and insight to apply unusual solutions to 
unusual problems. Expands upon class- 
room learning. The reward is graduation 
and a real diploma (if you have a printer). 
For grades 10-12. 


Kimtech 
States and Capitals 
16K RAM. $10.00. 

This program draws the United States 
and divides it into seven regions. It then 
asks which region is to be studied, draws 
that region’s states, and quizzes the user 
for the states’ names and their capitals. 
At the finish of each region, a scoring 
Summary is given showing results for 
that region and for the total lesson. 


Kopak Creations, Inc. 
Edu-Pak-] 
16K RAM. Cassette: $19.95. 

An educational program. Teaches the 
user, reading comprehension, vocabu- 
lary, spelling, some sentence structure, 
and two bonus games: “‘Super” Number 
Guesser, Fortune Teller. Coming soon! 
Edu-Pak 2, 3, 4, ... 


Super Math 3 
16K RAM. Cassette: $14.95. 

Drill yourself in addition, subtraction, 
multiplication, and division with 5 levels 
of difficulty. 


KMC Programs 
Help 
16K RAM. Cassette: £3.75. 
Test pupils’ knowledge of times tables 
in multiplication and division. Illustrates 


54 


concept of multiplication as the addition 
of groups and the concept of division as 
the subtraction of groups. 


Coor 
16K RAM. Cassette: $£3.75. 

3 lessons in Cartesian co-ordinates. The 
first gives basic facts and illustrates with 
examples. The second introduces the con- 
cept of X and Y axes and point of origin 
using moving graphics. The third is a 
game which uses knowledge of coordi- 
nates obtained from previous lessons. 


KMC Programs 
Darts 
16K RAM. Cassette: £3. 

Provides a realistic game of darts which 
exercises your ability in number work. 
Game cannot proceed until you calculate 
correctly. Correct calculation is also nec- 
essary to win the game against the com- 
puter. 


Mac-Man Software 
Alphabet Primer 
16K RAM. Cassette: $9.95. 

This program introduces the letter A 
to Z in large graphics. Screen prints let- 
ter A and awaits input of any key before 
proceeding. After letter Z, it returns A 
but the second run through requires in- 
put of the letter shown on the screen to 
go to B. 


Spelling Primer 
16K RAM. Cassette: $9.95. 

This program teaches youngsters to 
spell. The screen prints a picture and 
then a large word naming the object or 
concept. It then prints the picture and 
asks for INPUT of the word by user, i.e., 
SPELL .... There are many moving 
pictures and this is a visually stimulating 
program designed to hold children’s 
attention. 


Numbers Primer 
16K RAM. Cassette: $7.95. 

Program introduces digits 1 to 10 in 
large graphics. Second run through re- 
quires user to input to continue. Quanti- 
ties are depicted graphically as well as 
by numerals. Last segement allows user 
to input any number at random and will 
print that number. 


Addition Primer 
16K RAM. Cassette: 9.95. 

Similar to “numbers” except it adds 
the various combinations of 1 to 10 and 
graphically illustrates the quantities and 
their sums. 


Subtraction Primer 
16K RAM. Cassette: $9.95. 

Follows the same format as the Addi- 
tion Primer except that the function is 
subtraction. Addition and subtraction 
may be purchased as a pair for $15.95. 


Multiplication Primer 
16K RAM. $9.95. 

Program starts with an excellent and 
simple explanation of multiplication. It 
then proceeds with illustrated examples 
as in the above and test problems. 


Mac-Man Software 
Divison Primer 
16K RAM. Cassette: $9.95. 

Begins with definition and explana- 
tion of division followed by illustrated 
examples and test problems. *Mul- 
tiplication and Division may be pur- 
chased as a pair of $15.95. 


Multiplication Tables 
16K RAM. $9.95. 

An aid to learning the “times tables.” 
Provides for user to select the multiplier 
and then prints out the full table for 1 
through 12. This is in regular size type 
as it is for students who know addition 
and subtraction and the concept of mul- 
tiplication. Quiz at end. 


Mallas Software 
Grade Master 
16K RAM. Cassette: $15. 

Educators save your valuable time. Pro- 
gram computes grade average, median, 
totals of each grade, range of scores, class 
average, review individual or all students 
scores. 


Teachers Gradebook (32K) 
32K RAM. Cassette: $24.99. 

32K version of 16K RAM teachers 
gradebook available from Timex. Holds 
40 students/40 exams. Differentiates and 
reports averages of quizzes, tests, and 
quarterlies. Can alphabetize at any point 
during use and separate boys from girls if 
necessary. Self-starting, self-saving, print- 
er Output. Full support by SASE. 


R. Midura 
Capitals and States 
16K RAM. Cassette: $10. 

3 programs. Test your knowledge of 
the capitals and states, Europe, Middle 
East, Asia. 3 modes: 1) Given the state, 
name the capital; 2) given the capital, 
name the state; 3) random mixture of 1) 
and 2). Review option gives all incorrectly 
answered questions. Each quiz consists of 
a random order of multiple choice 
questions with the answer randomly 
placed among 3 randomly selected 
choices. 


Mindware Inc. 
From Eagle Sales 
Multiple Choice Test 
16K RAM. Cassette: $15.95 plus s&h. 
Set up virtually any kind of multiple 
choice test. You can write as many as 30 
different test questions each with 3, 4, or 
5 possible answers. Questions are ran- 
domly posed. A correct answer on the 


SYNC Magazine 


COBRA RS232C 


INTERFACE. 


= Ss 


At last, a high quality RS232C interface for the ZX81 
(TIMEX 1000) to connect you to any RS232C printer. 
Look at these features: 

Variable baud rate by software control. Upper and lower 
case printout. Up to 120 characters per line with soft- 
ware control. Handshake facility. Comprehensive man- 


COBRA CENTRONICS INTERFACE 


The same high quality as the RS232C except for the 
output being via a 24 way socket. Both interfaces have 
the same features. AT AN INTRODUCTORY PRICE 
OF ONLY $50.00 + $6.00 shipping. We also make 
every type of lead and plugs for the above interfaces, 

typical prices. 
25 way “D” connector with leads for above 232 $15.00 
4 way DIN plug and leads for the above 232 $15.00 


AVAILABLE JANUARY. 


Another first from COBRA. A truly intelligent RS232C 
interface. With this interface 2 ZX(TIMEX) computers 
can communicate with each other along any usable 
medium ie telephone, radio etc. Such information as 
listings, data strings and programs can be passed be- 
tween any number of computers very simply. The price 
is also unbelievable. For more details tick box below. 


Please rush me your (tick required) 


RS232C interface at only ................. $50.00 L| 
Centronics interface at only ............... $50.00 [L] 
Power supply buffer at only ............... $22.00 L_| 
Leads for the interface ................... $15.00 LI 
The free brochure from COBRA“ z 
More details of your 232 MODEM* E 


POA e eee ee 


Don’t forget to add shipping to your order 
*Please send a stamped, self-addressed envelope for 


brochure. 


ual with every unit. Fits on the back like a RAM pack. 
Uses the ZX(TIMEX) power supply. Output via 2 small 


jack sockets. 
AT AN INTRODUCTORY PRICE OF ONLY $50.00 + 


$6.00 shipping. 


COBRA POWER SUPPLY BUFFER. 


bast ae es Soares 


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Ever had hours of programming work lost in a moment 
owing to fluctuations in power or accidental switching of 
the wrong mains plug? 

The Cobra power supply buffer prevents such occur- 
rences affecting you. It is fitted between the Sinclair 
(Timex) power supply and the computer. During loss of 
power to the computer the buffer will continue to power 
the computer with a 9 volts supply for up to 30 minutes or 
more. It also has mains filtering circuitry to prevent 
spikes getting through to the computer. The unit will 
recharge itself during normal power on conditions. 
When a mains loss situation occurs a red LED will warn 
the user of loss of electricity supply. 

THE PRICE IS ONLY $22.00 + $7.00 shipping. 


Cobra Technology Limited, 378 Caledonian Road, Islington, London N1 1DY U.K. 


Bring thousands of dollars 
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Using, continued... 


first try earns 2 points; the second try 
earns 1 point. 


Word Test 

16K RAM. Cassette: $15.95 plus s&h. 
The computer poses in random order a 

series of up to 30 variations on a general 

test question, e.g., a question like, “What 

is the state capital of . . .?” It then checks 

the answers for accuracy and gives 2 


points for each correct answer. You can. 


enter a list that you want to be tested on: 
Practice language drills, vocabulary, and 
other memorized materials. By 
Christopher Jones. 


Mornae Software 

Lingo 1 

16K RAM. Cassette: $15.95 plus $1.50 
s&h. 

French, German, Italian, Japanese, 
Portuguese, or Spanish language pro- 
grams. Two-way translator. 16 lessons, 
each lasting 15-25 minutes, on nouns with 
articles, verbs, common words. Words 
randomly selected and repeated when 
incorrectly answered. Over 350 words 
with English translation on each cassette. 


P. Nethercot & R. Rackstraw 
Russian Roulette 
3K RAM. Tape only. £2. 

At heart a random number generator. 
Popular with younger children as it gives 
them a chance to fall down when “shot.” 
Makes nice use of graphic characters. 
See note in Suppliers Directory. 


Mark Total with Averages 
1K RAM. Listing: £1. 

Overcomes the task of working out 
average marks when children have been 
absent. Adds up marks, and where short 
calculates and includes an average to 
render the totals comparable. 


Mark Sorter 
1K RAM. Listing: £1. 

Sorts marks into descending order, 
along with pupil’s initials. Much quicker 
and more reliable than shuffling bits of 
paper. 


Tables 
1-3K RAM. Listing: £1. 

Generates tables, tests; does not repeat 
questions in any one test produced. More 
than 10 questions will require more than 
1K RAM. For teacher’s use as answers 
are supplied also. 


Ten Tables 
1K RAM. Listing: £1. 

Displays on the screen 10 multiplication 
questions. Press ENTER and the answers 
are displayed for pupils to assess their 
own results. 


Salary 
3K RAM. Listing: £1. 

Check your payslip, or see what you 
will get after the next payrise. Designed 
specifically for teachers. (So no higher 
band taxpayers catered for.) UK only. 


P.60 Check | 
3K RAM. Listing: £1. 

Check that P.60, see if you are due for 
a tax refund. Aimed at teachers. UK 
only. 


School Fund 
16K RAM. Tape only. £3. 

Handles school fund accounts, fully 
menu driven, any number of accounts 
available, printer routine included. Keep 
track of who has what in your school 
fund. Allows for current and deposit 
accounts. Also available through MUSE. 
See note in Suppliers Directory. 


Class List 
16K RAM. Tape only. £3. 

The names of your teaching group are 
held in an array so you do not have to 
enter the names each time you use the 
program. Enter the mark for each pupil 
and a mark order list is produced aong 
with the deviation from the average for 
each pupil. Printer option included. See 
note in Suppliers Directory. 


YHA Costs 
16K RAM. Tape only. £3. 

For those who go youth hosteling. Cal- 
culates total cost and cost per individual 
of visits to hostels. Transport costs may 
be included. All current YHA prices are 
included in array with routine for annual 
updating. Will also printout a booking 
form to send off to the hostels concerned. 
Fully menu driven. UK only. See note in 
Suppliers Directory. 


Orbyte Software 
The Quiz 
16K RAM. Cassette: $14.95. 

Math game geared to grades 1-4. 2 
levels of difficulty. Choice of addition, 
subtraction, multiplication. Series of 3 
problems appears. Correct answer gives 
graphic applause. Incorrect answer gives 
reinforcement by requiring a correct 
response. Random selection of combin- 
ations. 


Words 
16K RAM. Cassette: $14.95. 

Choose category: people, things, ani- 
mals, food, plants, time, numbers, geo- 
graphy, science, and technology. 450 
words in random sequence and scrambled 
differently each time. Solve scrambled 
words with 3 tries. After 10 words, score 
given. 


SYNC Magazine 


A Parsons 
Geography 
16K RAM. Cassette: $9.95. 

Seven programs: The student has to 
find towns in the UK or Europe with a 
series of five maps drawn on the screen. 
The maps are of Europe, UK, Southern 
England, South East England and South 
West England. There is a Town and 
Country naming program and an English 
Towns Hangman. 


General Knowledge 
16K RAM. Cassette: $9.95. 

A variety of general knowledge tests: 
Famous People Quiz, Name the Person, 
and Where About? Also Dates: Choose 
the correct date of a historical event. Plus 
Plurals: Spell correctly the plural of the 
word printed on the screen. 


Eurogame 
16K RAM. Cassette: $9.95. 

A war game played over the map of 
Europe for one or two players. Players 
choose when to attack. Graphics show 
the map, areas won and lost, and the 
electronic dice. All 24 lines of display are 
used. Tape also includes: Cat and Mouse, 
Maze, and Spy Run. 


Maths 
16K RAM. Cassette: $9.95. 

In response to requests from teachers, 
this tape has 3 competitive programs for 
Maths Practice, Plus Bridge Maths, 4 
Function Practice, each right answer 
builds another strut of the bridge; if not 
completed in 15 tries it falls down. Plus 
volumes; plus Big Maths, large figures for 
group use. 


Art and Fun 
16K RAM. Cassette: $9.95. 

Six programs: Noughts and Crosses, 
Battleships and Board Game. Sketch Pad: 
Allows the user to draw a picture, copy it 
if a printer is connected, record it to play 
again, and watch it re-draw the picture. 
Plus two fascinating pattern generators. 


1K Fun Learning 
1K RAM. Cassette: $7.95. 

Learn spellings, add in hours and min- 
utes, price quantities of groceries or give 
change. Plus four function sums with 
whole figure answers and score. Plus 
tables. 


16K Fun Learning 
16K RAM. Cassette: $9.95. 

Six programs including: Word Sums: 
Invites you to add amounts shown in 
words, not figures. Areas: Gives the pupil 
exercises in working out areas and peri- 
meters with guidance if required. Trans- 
lation program for English and French 
words. An English Vocabulary Test. Two 
versions of the very popular Hangman. 


May/June 1983 


Polymath 
Educational Aids Program 
16K RAM. Cassette: $19.95 pp. 

Solve and check mathematical equa- 
tions quickly and accurately. Solve quad- 
ratic, cubic equations, polynomials, factor 
numbers, solve for x and y, plus more. 
Menu driven. Turns your computer into 
a private tutor. Documentation. 


Rose Cassettes 
Intermediate Maths 1 
16K RAM. Cassette: £4.95. 

Six programs which first teach and then 
test, using generated numbers: 1) Long 
Multiplication: Allows for entry of all 
working starting from the RH end. 2) 
Long Division: All working shown on 
screen. 3) Highest Common Factor. 4) 
Lowest Common Multiple. 5) Fractions 1 
(add and subtract). 6) Fractions 2 
(multiply and divide). Each program has 
a different incentive jackpot game with 
moving graphics. Correct answers and 
running totals shown. Appropriate help 
facilities plus a printed certificate. 


Intermediate Maths 2 
16K RAM. Cassette: £4.95. 

Based on the same format as Inter- 
mediate Maths 1: Areas (7 basic shapes), 
Perimeters (5 shapes), Simple Equations, 
Percentages, Sets and Venn Diagrams. 


Intermediate English 1 
16K RAM. Cassette: £4.95. 

6 teach and test programs: Meanings 
(of words) 1, Meanings 2 (higher level), 
Parts of Speech, Proverbs, Similes and 
Anagrams. Each program has a different 
jackpot game incorporated with moving 
graphics. Correct answers and running 
totals shown, plus a certificate. Help fa- 
cilities in Parts of Speech and Anagrams. 


Intermediate English 2 
16K RAM. Cassette: £4.95. 

6 teach and test programs: Idioms, Op- 
posites 1, Opposites 2, Group Terms, Odd 
Word Out and Spellings. Each program 
has a different jackpot game with moving 
graphics. Questions are multiple choice 
using RND selection. Certificate given. 


“0” Level Maths Revision 
16K RAM. Cassette: £4.95. 

3 programs: 1) Teaches and then tests 
using generated numbers. Menu choices 
of a) Matrix multiplication, b) Inversion 
of a matrix, c) Multibase Arithmetic: 
Addition, d) Multibase Arithmetic: Sub- 
traction, e) Calculus: Differentiation, f) 
Calculus: Integration. 2) and 3) are timed 
tests, using 30 questions based on the “0” 
level syllabus. Explanations are given 
where appropriate. Numbers are 
generated. 


PREVENT 


erratic operation. A 
support designed for your 
Sinclair 16K memory stops 
the white outs. The 


support mounts on your 
Sinclair ZX81,1000 case. 
complete kit 


Send for 


$4.75 POSTPAID 


Check or money order 
To 
THE FOURTH DESIGN 
PO. BOX 1406 


NIAGARA FALLS, N.Y. 14302 


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MEMOCALC 
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MEMOCALC Spreadsheet Analysis $ 
Adjusts to use 16, 32, Or 64 K RAM and 
gives up to 99 cols. x 250 rows. Plug-on 
module gives instand LOADs 

MEMOTEXT Word Processor 
Full function W.P. uses 16, 32, or 64K. 
Plug-on module gives instant LOADs. 

TIMEX-Sinclair 2040 Printer 


Full Size Seikosha Printer Package 
White-On-Black Video Inverter 

MEMOTECH Keyboard 

“KLIK” E 
MEMOPAK 64K RAM... $148.95, 16K..$ 58.95 
TIMEX-Sinclair 1983 Directory 


We Pay Shipping On Ali U.S.A. Orders 
To Order: Send check, money order, or VISA/MC 
number and exp. date. MN res. add 6% sales tax. 
Foreign: Get estimate from your post office and in- 
clude with your order. We'll cover any underpay- 
ment. 

Write for our Free Descriptive Catalog 


E. Arthur Brown Company 
Dept. SM-2 1702 Oak Knoll Drive 
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57 


Using, continued... 


“0” Level French Revision 
16K RAM. Cassette: £4.95. 

6 programs. 3 teach and test grammar 
programs: 
Verbs, Pronouns, Adjectives; and 3 com- 
prehensive vocabulary programs: Vocab 
1 (nouns), Vocab 2 (Verbs), Vocab 3 
(Common Expressions etc.) 


Primary Arithmetic 
16K RAM. Cassette: £4.95. 

4 programs: Add, Subtract, Multiply, 
and Divide. Numbers in large size type. 3 
levels: 1) Units only, 2) Tens and Units, 3) 
Hundreds, Tens, and Units. Questions are 
asked, e.g, “Do you need to borrow one?” 
“What shall I carry forward?” A correct 
answer adds a features to a balloon face; 
an incorrect answer erases a feature. 
When all features are present, We have 
liftoff! (machine code). Printer gives hard 
copy of incorrectly done sums. 


Educational Quiz 
16K RAM. Cassette: £4.95. 

4 quiz programs. Questions cover: Gen- 
eral Knowledge, Reasoning, English, and 
Maths. RND function is used. See if you 
can beat the clock. Time penalty points 
are incurred if you are too slow. Suitable 
for all the family. 


FOR ZX-81 T/S1000 COMPUTERS 


D. Rowland 
Quiz Grader (1) 
1K RAM. Listing: $1 plus SASE. 

Grades tests and quizzes in which all 
sections are equally weighted; basic but 
efficient. 


Test Grader (2) 
2K RAM. Listing: $2. 

Similar to Quiz Grader but also handles 
differently weighted sections in a test. 


Test Grader with Group Printout (3). 
2K RAM. Listing: $2.50. 

Similar to Test Grader but prints out 
results every 10 students then recycles 
for next group. 


Test Grader with Grade-System Option 
(4) 
2K RAM. Listing: $2.50. 

Similar to Test Grader but user can 
change grade system without changing 
program listing. 


Super Grader (5) 
16K RAM. Cassette: $9.50. 

Deluxe menu-driven test grader with 
many options and error corrections pro- 
visions to assure user that typed in data 
are correct. 


Scisoft 
“O” Level-Physics, Chemistry or Biology. 
48K RAM. $8. 

“O” level study packs include revision 
book, hints on how to revise, problems, 
and multiple choice questions. 


“O” Level Maths Parts I & II 
48K RAM. $5.50. 

“O” level study packs includes re- 
vision book, hints on how to revise, data 
randomised; different questions each 
time. 


Junior School Maths 
48K RAM. $5.50. 

Jungle Maths: +, -, X, +. Pass 
through a jungle by getting the sums 
right, but watch out if they are wrong. 
Astromaths: Decimals, Fractions—play 
a space game but only if the answers are 
right. 


Paul Shreeve Software 
Primary Maths Package 
16K RAM. Cassette: $10; Listing: $3.00 
(inc. s&h). 

Tables test, fractions game, area 
game, make simple math fun for ele- 
mentary grade children. 


POLY MATH IS HERE TO HELP YOU! 
Now you can transform your Timex/Sinclair computer into a 
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Let Polymath be your computer tutor! 
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e Solve Cubic Equations 
e Factor Numbers 
e Find Prime Factors 
e Find GCD’s 
e Evaluate Polynomials 
e Evaluate for X and Y 
© Plus much, much more! 


Solve equations quickly and accurately. Polymath is an entry 
into the wider fields of science and technology. It will guide 
you towards algebraic logic, the key to faster, efficient 


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user-friendly POLYMATH 
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Send check or money order for $19.9 ppd. To: 
POLYMATH, P.O. Box 800, Felton, CA 95018 


Calif. Res. Please add 6.5% tax 
Orders Outside Continental U.S.A. add $1.00 


58 


16K RAM Reqd BUSINESS AND HOME 
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SYNC Magazine 


Learning About Ourselves 
16K RAM. $5 (inc. s&h). 

A 16-page (A4) sized book containing 
listings of five programs for 
elementary/junior high science. 1) Bar 
graph program, 2) Reaction test pro- 
gram, 3) Alphaset Memory test, 4) Nu- 
meric Memory test, 5) Averaging 
numbers program with a full description 
and follow-up ideas for each program. 


Sinclair Research Ltd. 
Cassette 2: Junior Education. 
16K RAM. Cassette: $11.95. 

7 programs to help with addition, sub- 
traction, multiplication, division, and 
spelling: Crash, Multiply, Train, Frac- 
tions, Addsub, Division, Spelling. 7-11 
year olds. 


Cassette 5: Junior Education 
1K RAM. Cassette: $11.95. 

6 programs: Math: 4 arithmetic func- 
tions at 3 levels of difficulty. Balance: 
See-saw theory. Volumes: Cube is drawn 
with dimensions given. Averages: Mean 
and mode. Bases: Decimal to other bases. 
Temp: Find resultant temperature from 
mixing 2 barrels of water at different 
temperatures. 9-14 year olds. 


Software Development Associates 
Statehood Quiz (E100) 
16K RAM. Cassette: $12.95. 

Quiz 1: Capitals & Rank. Quiz 2: 
Birds & Flowers. Quiz 3: Mottos & 
Nicknames. The name of a state is dis- 
played and you respond with an answer. 
Each correct answer receives 10 points. 


Word Quiz Vol. 1 (E200) 
16K RAM. Cassette: $7.95. 

Two educational lessons to help you 
increase your vocabulary. Each lesson 
displays a word with two definitions. If 
you select the correct definition, you will 
receive 10 points. Each lesson consists of 
25 words. Lesson 1 is a beginner’s les- 
son. Lesson 2 is an advanced lesson. 


Hangman Vol. 1 (E300) 
16K RAM. Cassette: $7.95. 

An educational lesson to help you im- 
prove your spelling ability. The lesson 
randomly selects one of fifty vocabulary 
words. These are the same words used 
by Word Quiz Vol. 1. You are required 
to guess the word letter by letter. After 
each mistake another piece is added to 
the hanging man. After 13 mistakes, the 
body is complete, and you lose. 


Isn’t it about time you and your Timex Sinclair 
really got to know each other? 


Microcomputer books and software from Wiley Press. 
We’re great at introductions. 


WHAT CAN I DO WITH MY TIMEX 
SINCLAIR 1000? LOTS! 


Roger Valentine 


Over fifty ready-to-run programs let you 
do lots more with your 1000 or ZX81 
than you ever thought possible — includ- 
ing 35 programs that run on the 1K and 
2K versions. 160-page paperback plus 
software cassette $29.90 


THE TIMEX SINCLAIR 2000 
EXPLORED 
Tim Hartnell 


Leads you step-by-step through all the 
2000’s color, sound, and graphics. 
Features 46 programs, from games to 
business applications. “Teaches skills 
which. without its aid might take years to 
acquire” 
— Clive Sinclair 

Inventor of the Sinclair Microcomputer 


224 pp. $12.95 


WILEY PRESS 


a division of John Wiley & Sons, Inc. 


605 Third Avenue, New York, N.Y. 10158 


BYTEING DEEPER INTO YOUR 
TIMEX SINCLAIR 1000 


Mark Harrison 


Squeeze every bit of computing power 
from your 1000. Here's step-by-step 
guidance for programming the Timex 
Sinclair 1000, plus thirty-seven ready- 
to-run programs for home, business, 
and educational applications. 


T7Gp pe: $1299 


Wiley microcomputer paperbacks and 
convenience software can also introduce 
you to using VisiCalc,” BASIC, COBOL, 
and more advanced programming 
techniques. Ask for them at your local 
computer store or book shop. Or order 
directly from us with this coupon—and 
use any program free for 15 days. 


For faster service CALL TOLL FREE: 
800-526-5368. 

In New Jersey, call collect: 

(201) 797-7809. 

Order Code # 3-9870 

VISA, MasterCard, American Express 
accepted on phone orders. 


VisiCalc® is a registered trademark of VisiCorp. 


| Unlocking the power of computing 


The Software House 

Cassette M1 

16K RAM. Cassette: $8; 2 for $12. 
Addition, subtraction, fundamental 

arithmetic, various skill levels, fun and 

enjoyable. 


Cassette M2 

16K RAM. Cassette: $8; 2 for $12. 
Multiplication, division, teaches funda- 

mentals, various skill levels. 


Softsync, Inc. 
Computer Tutors: Alpha| Vowel Tutors 
16K RAM. Cassette: $14.95. 

Two programs on one cassette which 
visually help children learn the alphabet 
and the use of long and short vowels 
while also introducing them to the world 
of computers. With the help of graphic 
displays, students learn to match letters 
to the correct words. Alpha Tutor (ages 
4-8) and Vowel Tutor (ages 5-9). 


Computer Tutors: Math Raiders 1000 
16K RAM. Cassette: $14.95. 

Math Raiders combines valuable math 
tutorial exercises with the fun of arcade 
games. You are the captain of the USS 
Raider 1000 with four weapons: addition, 


Please send me the books and/or software 
indicated to use free for 15 days. If not 
completely satisfied, | may return them 
within the trial period and owe noth- 
ing. (Restricted to continental U.S. and 
Canada.) 

C Payment enclosed plus sales tax. Wiley 
pays normal bookrate postage/handling. 
We normally ship within 10 days. If ship- 
ment cannot be made within 90 days, pay- 
ment willbe refunded. [O Bill me. 


d 


[J] (1-88707-2) Valentine $29.90 
O (1-89099-5) Hartnell $12.95 
O (1-89888-0) Harrison $12.95 
Please Print 


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NAME i 
FIRM | 
ADDRESS | 
2 GG, sO OR ne Lee avon al ME Pf ae Lee, 
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SIGN HERE 

CREDIT CARD ORDERS: To charge your 
order plus local sales tax and shipping/han- 
dling. fillin the information below. If you are 
not satisfied with the book or software, 
return it within 15 days for a full credit to 
your account. 


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(Offer valid through August 31, 1983.) 
Prices subject to change without notice. 
Mail to: Wiley Press 
P.O. Box 092 
Somerset. N.J. 08873 
092 3-9870 5 


Using, continued... 


subtraction, multiplication, and division. 
Right answers allow you to fire at the 
invaders who are trying to penetrate the 
atmosphere. Two levels of play; ages 6- 
10. 


Spencer Software 
Control Taster Course 
1K RAM. $11. 

A friendly 50 page booklet for simple 
control experiments on the ZX81. It 
includes details of traffic lights, simple 
robot, bar code reader and music maker. 
The booklet includes some notes con- 
cerning the construction of the control 
box. Each copy contains a copyright 
waiver allowing schools to duplicate extra 
copies for their own use. 


Hodthorpe Collection 
16K RAM. Cassette: $21. 

A collection of six general purpose 
programs for educational use covering 
arithmetic, spelling, picture quiz, multiple 
choice quiz and so on. The problems are 
chosen by the teacher and the computer 
monitors the responses for up to 20 pupils. 
Includes a 60 page booklet with examples, 
instructions, and listings. 


Computing Taster course 
1K RAM. $8. 

A friendly 40 page booklet in large 
letters, which has been used with a large 
number of 10-14 year olds. It includes 25 
or so programs which allow the pupils to 
gain experience whilst holding their inter- 
est. Each copy has a copyright waiver 
allowing schools to duplicate extra copies 
for their own use. 


Taster course — Teacher's Notes 
1K RAM. $5. 

Notes and comments concerning the 
way in which the above material was used 
with a variety of pupils. 


2-Bit Software 
F a3, Go 
2K RAM. Cassette: $9.95. 

For the very youngest computer users. 
Exercise skills in counting (Cats and Drag- 
ons), knowing left from right (Trace 
Course), and spelling (Scrambled Eggs; 
Alphabeasts). But do not tell; they will 
just think they are having fun. Can be 
played alone or with a friend. Ages 6 and 


up. 


2K Express 
Seven Programs 
2K RAM. Cassette: $12; each program 
available as a listing at $1. Catalog: 
SASE. 

Mathtest: Ideal for youngster; uses rep- 
etition, rewards, 3 levels of difficulty. 


60 


Utilities: Enter meter readings; compare 
past normals; updates averages. Makelist: 
Scrolls text of 22 lines; change any line. 
Other programs: Invoices, Budget, 
Monthly Sales Graph, Averages Graph. 
Fasily built to 16K. 


P. Hargrave 
Four 16K Programs 
16K RAM. Cassette: $12.50. 

Math Tutor: Add, subtract, multiply, 
and divide. Five levels. Menu controlled. 
Typing, Skills: A fun and competitive 
skill improver. Set speed, keep up to the 
computer. Birds: Guide missiles to inter- 
cept the Bird or what it drops will bring 
a nasty end. Astro Smasher: Dodge as- 
teroids, smash enemy ships before force 
shields fail. 


D. Lipinski Software 
Tutor 
16K RAM. Cassette: $10. 

A quiz-making program to help oth- 
ers learn. You tailor the quiz to your 
student. You may enter text and ques- 
tions or just questions in multiple choice, 
true-false or direct answer. Included is a 
subroutine to organize your inputs so 
they are readable when displayed. Self 
expanding to the available memory. 


Robill Products 

MX-Pac 

1K/16K RAM. Cassette: $24.95 + 2.75 
s&h. 

Provides immediate use and in-depth 
knowledge for the beginner-intermediate 
level user. 6 games, 6 patterns, 6 utility 
programs. The included book, Printout 
I, is 100 pages of support/growth, 
containing clear explanations of the 18 
programs and listings for 2K and 16K 
expansions. 


Silicon Valley Software 

States and Capitals 

16K RAM. Cassette: $9.99. 
Educational game to learn U.S. State 

and Capitals. Play and study options. 

Automatic score keeping. Fun for all 

ages. 


U.S. Presidents 

16K RAM. Cassette: $9.99. 
Educational game to learn the U.S. 

Presidents. Important Presidential facts 

included. Automatic score keeping. Fun 

for all ages. 


Chemical Symbols 

16K RAM. Cassette: $9.99. 
Educational game to learn the chemi- 

cal elements in the Periodic Table. Auto- 

matic score keeping. Junior High School 

level and above. 


Loans 


Basco 
Super Mortgage 
16K RAM. Cassette: $10. 

The program is menu driven and al- 
lows comparisons for various mortgage 
amounts, terms, and interest rates. A 
range of comparisons for each element 
of the mortgage is allowed and detailed 
output tables are provided. A detailed 
amortization schedule is also provided 
as an option. All instruction is contained 
in the program. 


Florida Creations-Dept. SBG 
Home Financial Package 
1K RAM. Listing: $2. 

Mortgage Analysis: Calculates 
monthly payments on loans. IRA Plan- 
ner: Calculates your retirement possibil- 
ities. Bond Investment: Calculates actual 
returns on bonds. 


Business Depreciation Package 
lk RAM. Listing: $2. 

Calculates yearly depreciation and 
book value using (1) straight line 
method. (2) sum of the year’s digits 
method; and (3) double declining bal- 
ance method. 


Kopak Creations, Inc. 
The Loan/Mortgage Amortizer 
16K RAM. Cassette: $14.95. 

On your next loan, be ahead of the 
game. Compare the cost of loans from 
different Banks. 


R. Panwar 
Loan Analysis 
16K RAM. Cassette: $9.95 plus $1 s&h. 
Helps analyze loan with menu and 
instructions. Calculates: monthly payment 
for a loan; duration to pay back a loan; 
affordable loan amount; compare various 
loans; manipulate loan parameters; amor- 
tization tables; interest charges; com- 
pound interest; appreciated value of an 
investment; depreciation (straight line, 
declining balance, sum of digits). 


Z-West 

Loan Helper 

16K RAM. Cassette: $6.95 plus $1 s&h. 
A program to display the total cost of 

any loan, interest paid, and period bal- 

ances. You can better judge your financial 

obligations with this program, and make 

an efficient decision for loan application. 


Stocks and Investments 


American Micro Products, Inc. 
Stock Returns 
16K RAM. Cassette: $17.95. 
The user enters information concerning 


SYNC Magazine 


CineQain Place 


16K MEMORY SALE (While they last) 


AUDIO COMPUTER 16K—Reg. $48.00.................0+ $29.95 
MEMOTECK 16K—Reg. $59.95.........sscccsssssscceseessees $51.75 


dK’ TRONICS (cased) KEYBOARD 
INTERNAL MOTHERBOARD— 
12 key numeric pad. $88.00 
INTERNAL 16K FOR 
dK’TRONICS 

KEYBOARD $34.95 
INTERNAL 64K 

$89.95 

HAVEN HARDWARE KEYBOARD 
(Uncased)—Repeat Key, 41 Keys...$55.00 


FLEXIBLE RIBBON CONNECTOR—fits between computer 
MERAM “PYRO doa aeniea ria A haa etan $19.75 
REPEAT KEY MODULE—gsolders inside case............ $12.00 
INVERSE KEY MODULE—solders inside case.......... $12.00 
SWITCHED OUTLET BOX 
One outlet switches ON/Off 
Other 3 remain live...$23.95 
HEAVY DUTY SWITCHED 
POWER SUPPLY—9V 

with On/Off...$23.95 


Reg. NOW 


$89.95 

$19.95 

SEIKOSHA GP-100 PRINTER—80 col....$349.00 $329.00 
Add $10 For Shipping Printer 


MINDWARE MW-100 PRINTER—16 Column......... $129.95 


CATACOMBS—Explore various levels..................... 
ZX GALXIA—Rated ‘‘Best’’ ZX81 version.............+ $15.00 
80 HOURS AROUND EUROPE—Unusual gamoe....... $15.00 
KRAKIT—Win $20,000 or more...........ccsssccccssseccceeees $19.00 
PERSONAL BANKING SYSTEM—England’s best....$20.00 
ZXAD—Well documented Assembler/Debug............ $15.00 
Take 5% off for 2, Take 15% off for 3 or more. 


BOOKS 


COMPLETE TS1000/ZX81 BASIC COURSE—The most com- 
prehensive |B VATA oo. oko cok decd cocacc, vockues cnasonbsosweepaaadlvs $34.95 


COMPLETE TS1000/ZX81 ROM DISASSEMBLY.....$19.95 
MACHINE LANGUAGE MADE SIMPLE.................... $14.95 
UNDERSTANDING YOUR ZX81 ROM...................... $19.50 


Buy the BASIC COURSE at $34.95 and get 
any other book for 1⁄2 price. 


Free in U.S. — $1.00 for S&H outside U.S. 
If your produce QUALITY hardware or software or if you are a 
dealer, we’d like to hear from you. 
All hardware and software guaranteed. We will replace if there are 
any defects. All prices are U.S. dollars. Add $1.50 for shipping 3rd 
class, continental U.S. $2.50 for first class, Hawaii, Alaska and 
Canada (except printers). Washington residents add 7.6% tax. 


P.O. BOX 2288 


REDMOND, WA 98052 


WANT TO MAKE YOUR 
LITTLE TS 1000/ZX81 
INTO A 

REAL COMPUTER? 


TRY OUR PLUG-TOGETHER 
SYSTEM TO BUILD 

WHAT YOU NEED, 

AS YOU 

NEED IT. 


PERSONA 


THESE MODULES ARE BEAUTIFUL! 


PERSONA—Connects to rear of computer with a flexible 
cable. It is the interface for all the other 
TAa TE P AREE E RA ORION GPE ath oY ae At YER eM ee aC LORIE AS $59.95 


RAM 08—2K RAM expandable to 8K................0c000 $29.95 
EA ONG ARE EARE ERT VA E AE E TEE VEE PEA E 


RAM 64—Arranged as 4 blocks of 16K; all can be used 
simultaneously under MINIMAP controll...........000 $139.95 


DROM—Memory storage with rechargable battery, Expan- 
CABS Ten IS 10 BIS CREDEA EEA PTE EA T, $69.95 
PA E AMON T PEE A I E EA TO ARSE E A. $13.95 


MINIMAP —Memory mapping device to expand address space 
from 64K bytes to 1 megabyte. Organized into vertical 64K 
PAGES. All memory dynamically defined from within a 
AEAN, PENAN D E ERAD PAA REEE EE EA ERAL PAE AA A $54.95 


TOOLKIT—Uses up to four 2K EPROMS. Address space 
after on-board ROM. Allows calling TOOLKIT-held routines 
with USR function. Several TOOLKIT modules can be used 
ender MINDA ae hs ee atis padan i dran $44.95 


PERICONa—General purpose, user programmable 24 lines 
of input/output. Up to 4 PERICONa can be used together 


PERICONb—24 lines of heavy duty output to access and con- 
trol the outside world. Lines are capable of operating relays 
or driving long signal lines. Up to 4 can be used.....$54.95 


PERICONc—Centronics type interface..............ssse00 $69.95 
USERFONT—User defined characters for use with DROM or 


RAM 08. Define a set of 128 characters. Characters can be 
stored in EPROM by using TOOLKIT.................00 $13.95 


More modules will soon be available. 


a AN MES £5Te SESE WARE A DS ES SALE SIE RWS BD ORCI IE REEL LaPeer WORN on REE RRR aad ts OE ST a ae oe Tiny, SS 


Using, continued... 


the selling price of stocks along with their 
annual dividends in order to obtain the 
return on the investment for any com- 
bination of years. 


Computer Engineering Services 

Mutual Fund Advisor 

16K RAM. Cassette: $12.95 plus $1.25 
s&h.. 

A program based on a proven method 
for investing in no-load mutual funds. 
Records.can be saved and then loaded. If 
you are an investor, this program is for 
you. Instructions and listing. By Rolf L. 
Miller. 


Data-Assette 
Compu-U-Share 
16K RAM. $24.95. 

Maintain an up to date portfolio of 
your stocks, bonds, or other financial 
investments. Monitor your results or run 
a forecast of expected results. Includes 
P/E ratios, dividends, etc. 


Property Manager 
16K RAM. $24.95. 

Provides for any combination of 10 
units in 2 buildings or 2 units in 5 build- 
ings. Track each unit for rent, up to 15 
variable expense categories and 15 fixed 
expense lines for a full year. Optional 
SAVE routines for the ZX99. 


Gladstone 
Personal Stock Market Planning (Z54) 
16K RAM. Cassette: $29.95. 

4 programs on 2 tapes with detailed 
instructional manual. Programs adapted 
to ZX81 and TS1000 from routines used 
in large scale computers by a leading 
software house. Programs: Dow Jones 
Moving Average; Personal Stock/Bond 
Transaction Recorder; Portfolio Review; 
Point and Figure. 


Kopak Creations, Inc. 
The Stock Option Analyzer 
16K RAM. Cassette: $16.95. 

Using the TS1000 you can evaluate 
stock options quickly. Output includes 
an unexercised ROI, annual ROI, and 
net worth. 


M.H. Marks Enterprises 
Stock Portfolio 
16K RAM. Cassette: $19.95. 
Menu-driven program which stores all 
pertinent data of up to ten different 
stocks at a time. Continuously calculates 
gains, yields (including dividends re- 
ceived) and length of time held of in- 
dividual stocks as well as a composite 
view of all holdings. Each stock entry 
can be easily modified or deleted. 


Wall Street Wizard 
16K RAM. Cassette: $9.95. 
Calculates broker’s commission on 


62 


any stock in any quantity. Calculates 
gains and yields on currently held 
stocks. Call Option strategy also is 
incorporated into this program: When 
you buy a stock and sell an option 
against the stock, the computer will cal- 
culate what will happen on expiration 
date of the option, 


Orion’s Belt Enterprises 

Analysis 

16K RAM. Cassette: $17.95 plus $1 s&h. 
Stock selection guidance. Fundamental 

stock analysis. One time input using data 

in newspapers/library. Make BUY/ 

HOLD/SELL decisions. Uses linear 

regression techniques to forecast 

expected earnings and corresponding 

market data. Tape and tutorial. 


Portfolio 
16K RAM. Cassette: $15.95 plus $1 s&h. 
Investment portfolio file management. 
Maintain records of shares, cost, perfor- 
mance, and selling price targets of up to 
50 stocks, bonds, mutual funds. Menu 
driven. List file, records; record main- 
tenance or file update options. SAVEs/ 
LOADs. Input current market prices and 
program recalculates overall portfolio and 
individual security performance as well. 


D. C. Roberts 

Stocktaker 

16K RAM. £6.50 UK; £9 US, pp. 
Provides comprehensive and automatic 

valuation and stocktaking facilities for the 

small businessman, sports and social 

clubs, or domestic use. Menu driven with 

paging; full screen tabular display in six 

columns with sub and grand total options. 

Includes “initialise,” “change,” “update.” 


Stocktaker 
Spectrum 48K. £7.50 UK; £10 US, pp. 
Provides fully comprehensive and auto- 
matic stock control and valuation facil- 
ities and is ideal for the small business- 
man, sports and social club or domestic 
use. The program is menu driven with 
paging and full screen tabular display in 
six columns. Facilities include “initialise,” 
“change,” “update,” and “review” as well 
as display of sub and grand totals. 


M A Smith 

Personalised Share Portfolio Program 
(Mark I) 

16K RAM. Cassette: £7.50 Sterling 
Money Order. 

Menu driven with add/delete facility; 
full schedule with graphic presentation; 
capital gains calculation; Dow Jones In- 
dex compared with share performance; 
auto print capability. 


Personalised Share Portfolio (Mark II) 
Spectrum 48K. Cassette: £8.50 pp. 
Menu driven program similar to Mark 


I but updated for the Spectrum Com- 
puter. Separate programs provided for 
20 and alternatively 40 share locations. 


Softsync, Inc. 
The Stock Market Calculator 
16K RAM. Cassette: $16.95. 

Written by an experienced Stock Mar- 
ket executive, this program is made up of 
two sections. “MKT 1” contains Net Price 
Worksheet, Profit/loss and Covered Write 
Worksheet. “MKT2” uses the Net Price 
Worksheet and adds the Write Unwrap- 
per. You can alter variables after the 
initial run, enabling you to try different 
price and investment alternatives. 


Teletek Co. 

Stock Market Program. 

16K RAM. Cassette: $9.95 + $0.50 
s&h. 

Manages your portfolio, maintains 
records of securities you have bought 
and sold. Analysis provides 12 different 
listings (gains, loss, dates, yields, etc.). 
On side 2 of cassette, program for mar- 
ket forecast. 


UAS 
Fundamentals. (C4014). 
16K RAM. Cassette: $7.95. 

Evaluate your stocks by the seven key 
factors used by successful stock market 
analysts. Also includes a subprogram for 
dollar cost averaging. 


Manage Your Stock Portfolio. (C7003). 
16K RAM. Cassette: $7.95. 

Track your portfolio of stocks to assess 
your profit and losses through various 
periods. Check your performance against 
your investment goals and as compared 
with the current inflation rates. 


Stock Options. (C4008). 
16K RAM. Cassette: $7.95. 

Stock options can open up a new in- 
vestment horizon for you when you know 
the timing for buying and selling them. 
Remember they require less investment 
than stocks. The program will calculate 
the projected rate of return over the life 
of the option and allow you to compare 
various stock option combinations. 


Real Estate. (C4003). 
16K RAM. Cassette: $12.95. 

One of the trickier aspects of investing 
in real estate is determining how much 
you can make or lose after taxes. This 
program allows you to input the key in- 
vestment details on up to three different 
properties and then calculates the cash 
flow and the return on investment for 
comparison. Calculations are done before 
and after taxes. You can play “what if” 
simulations. 


SYNC Magazine 


Financial Records 


Basco 
Home Financial Planning 
16K RAM. Cassette: $7.50. 

2 programs to help you invest your 
money and project interest on install- 
ment loans. Interest received projection 
estimates the future return on an invest- 
ment using compounding of interest by 
compounding period. Loan payment. 
projectioz: estimates the monthly pay- 
ment for an installment loan based on 
the amount borrowed, length of time 
and interest rate using compounding. 


Graph Power 
16K RAM. Cassette: $10. 

Menu driven program allows bar 
graph and pie charts to be produced. 5 
bar scales can be selected with up to 18 
points plotted. 


Cottage Technology 
ACZ General Ledger 
16K RAM. Cassette: $29.95. 

Double entry accounting system; menu 
driven; generates trial balance, income 
statement, balance sheet, statement of 
owner’s equity, and a post closing trial 
balance; includes many options. 


Easy Graph 
16K RAM. Cassette: $9.95. 

Converts your data into a fast, flicker 
free bar graph display labeled with appro- 
priate scale and title. Enter the data and 
let Easy Graph do the rest. When SAVEd, 
program retains past data for easy 
updates. 


Custom Electronics Device Corp. 
E-Z Bookkeeping 

For small business, department in a 
large business, homemaker. Set up num- 
bered accounts; vendor list. Take expen- 
ses from check book and/or receipts and 
enter. Computer categorizes and totals 
for last period, totals to date. 


Data-Assette 

Budget Forecaster and Cash Flow 
Analysis 

16K RAM. $19.95. 

For home office. Keep detailed 
records for twelve months in 1) income, 
2) variable expenses, loan balance or line 
of credit. Forecast or track cash flow. 


D.S.B.C. 
Home Accounting 
16K RAM. Cassette: $6.95. 

3 programs to assist in proper control 
of home finances. Checking balance, 
budget, expense file, Menu driven. 


May/June 1983 


CYBORCGWARS 


NOT ANOTHER TOY 


BUT A COMPLEX SIMULATION OF FOUR MILITARY- INDUSTRIAL 
ECONOMIES LOCKED IN A DEADLY STRUGGLE FOR SURVIVAL. 


ONE TO FOUR PLAYERS COMPETE WITH EACH OTHER AND/OR 
THE COMPUTER. BALANCE OF POWER DEPENDS UPON 
SKILL IN DEVELOPING RESOURCES, USE OF ESPIONAGE, 
EXPLOITATION OF ALLIANCES, AND UTILIZATION OF MILITARY 


POTENTIAL. 


GLa 


REQUIRES ZX81 WITH 8K ROM AND 16K RAM. 


ORDER FORM FOR CRORCWORS) 


Send $14 (plus $1 for shipping) to: 


STRATAGEM CYBERNETICS, INC., 


286 Corbin Place, 2E, Brooklyn, New York 11235. Y 


SM et a ee ree 
Hig et ee 
BE ee ON eee a 


: Dm Wales wera 


ZOR KHAN 


is THE NAME to remember for your .... 


TIMEX 


AND 


SINCLAIR 


SOFTWARE 
& 


ENTERTAINMENT 
EDUCATIONAL 
HOME MANAGEMENT 


PLEASE SEND me your latest software 
catalogue. | enclose $100 P&H that will 
be credited on my first order. 


i ADDRESS 


I 
i 
NAME l 
| 


aoe e EE E 


| ZOR KHAN 
| x BOX 31569 x l 
l AURORA, COLO. | 


80041 


E E 


K ics See eee 


Now you can use a joystick 
for your Sinclair ZX81 

and Timex/Sinclair 1000 Com- 
puter 


Instructions 
Instructions and kit 
(excluding joystick) 


Send check or money order pay- 
able to: 
Rayco, P.O. Box 484, Dela- 
ware, Ohio 43015 


63 


Using, continued... 


Executive Workshop 
Financial Ratio Analysis 
16K RAM. $4.95. 

Accepts various figures from a 
company’s income statement and com- 
putes 11 ratios including assets to debt, 
debt to worth and average collection pe- 
riod. Flags potential problem areas. Pro- 
vides the most accepted method to 
measure the financial stability of any 
company. 


Expected Value Computation 
16K RAM. $4.95. 

Computes potential return on various 
projects. Used to analyze business de- 
cisions by the statistical method of ex- 
pected value. All possible outcomes are 
weighted to arrive at a reasonable ex- 
pected value. 


Pricing Programs 
16K RAM. $4.95. 

Computes variable and fixed costs and 
provides retail prices with various mark- 
ups. User can set margin of mark-up or 
total profit required. 


Financial Package 
16 RAM. $4.95. 

Computes: installment payments with 
interest on unpaid balance; installment 
payments with add-on interest; loan 
amortization with annual, semi-annual, 
quarterly, or monthly payments and 
remaining balance table; savings account 
interest compounded daily. 


Accounts Payable/Receivable 
16K RAM. $4.95. 

Includes listing for up to 100 ac- 
counts. Keeps track of date of last trans- 
action and amount due. Search by name 
or number. Lists total accounts 
payable/receivable. 


Sales Trend Analysis 
16K RAM. $4.95. 

Charts and computes highs, lows, av- 
erages, and increase (decrease) over pre- 
vious years. In choice of four formats: 12 
month: $1500 or $15,000 monthly sales; 
24 month: $1500 or $15,000 monthly 
sales; 12 month: $2000 or $20,000 
monthly sales; or 24 month: $2000 or 
$20,000 monthly sales. 


Depreciation Schedule 
16K RAM. $4.95. 

Compute equipment depreciation on 
the straight line, sum-of the years-digits 
or double declining balance. Special Fea- 
ture: double declining balance converts 
to straight line according to the proper 
accounting formula and allows for a sal- 
vage value of 0 when required. 


64 


Break-Even Analysis 
16K RAM. $4.95. 

Computes unit sales and dollar vol- 
ume of sales necessary to reach a break- 
even point, beyond which profits are 
gained. Various retail prices can be input 
to test their effects on the break-even 
point. 


Gladstone 
Property Manager (D22) 
16K RAM. Cassette: $24.95. 

Provides for any combination of 10 
units in 2 buildings or 2 units in 5 buildings 
per program. Additional units handled by 
running a new copy of the master file. 
Program tracks each unit for rent, up to 
15 variable expense categories, 15 fixed 
expense lines. For one year. 


Personal Financial Planning Pack (Z53) 
16K RAM. Cassette: $29.95. 

2 tapes and detailed reference/in- 
struction manual. Programs: Checkbook 
Balancing, Personal Net Worth, Budget 
Plan, Mortgage Plan. 


Heath Computer Services 
Cash Register (SBG-56837). 
16K RAM. Cassette: $9.95. 
Totals, figures sales tax, clears and 
keeps daily totals. 


Human Engineered Software 
Budget Master 1000 
16K RAM. Cassette: $15.95. 

An invaluable household budget pro- 
gram for the new Timex/Sinclair 1000. 
Features full user control to create your 
own categories as well as display totals 
in monthly, year to date and average 
format. 


Kopak Creations, Inc. 
The Budgeter 
16K RAM. Cassette: $15.95. 
This program can keep track of your 
personal budget and expenditures. 
Automatically loads above 
RAMTODP, it is like extended Basic for 
your TS1000 or Sinclair ZX81. 


Accounts 
16K RAM. Cassette: $19.95. 

Small business or home accounting 
system. 


Manufacturing Control 
16K RAM. Cassette: $19.95. 

Lets you compare labor and manufac- 
turing cost of 150 products. 


Personal Records Storage System 
16K RAM. Cassette: $29.95. 

Personal records are easily stored with 
this program. 


D. Lipinski Software 
Inex 
16K RAM. Cassette: $10. 

An income and expense sheet style 
program for purchases, payment, in- 
terest, beginning balance and current 
balance for over 99 different user ac- 
counts including standard deductions, 
net pay and total income. Add/delete 
account names, list to screen or printer, 
transfer balances to set new account pe- 
riod. Self expanding to the available 
memory size. 


Markel Software 
Financial Record Keeper (16K RAM) 
16K RAM. Cassette: $14.99. 

Files one year’s record in 20 user de- 
fineable areas. Printer output. Menu 
driven. Month by month totals, year to 
date totals, review individual files, or all 
totaled. Full maintenance routine. Self- 
starting, self-saving, self-naming (accord- 
ing to the year entered). Full support by 
SASE. 


Financial Record Keeper Plus (48) 
48K RAM. Cassette: $24.99. 

All the applications in Financial Record 
Keeper (16K RAM) plus the ability to 
hold 500 checking transactions. Checks 
listed according to a number of options 
(date, check no.) or by endorsee. List 
year to date totals by endorsee or cate- 
gory. Checkbook reconciliation routine 
included. Shows which checks have clear- 
ed the bank. 


Mohr & Associates Corp. 
Financial Planner 
16K RAM. Cassette: $25. 

Software for the insurance man. A com- 
plete CNA packaged for the aggressive 
insurance man. Balances the client’s 
assets, provides retirement and insurance 
planning. 


Tax Favored Programs 
16K RAM. Cassette: $25. 

For the IRA, annuity salesman. Gives 
comparison of other financial packages 
such as CDs, mutual funds vs. Tax defer- 
red annuities (KEOGH/IRA/TSA/ 
SPDA/Flexible Annuities). 


P. Nethercot & R. Rackstraw 
Budget Account 
16K RAM. Tape only. 3. 

Keep track of where the money goes; 
see why you are always in the deficit at 
the end of the year. Allows for annual 
review, printout status, shows amount 
budgeted per item, amount spent and 
balance remaining, percentage, and total 
spent each month. Menu driven. 


SYNC Magazine 


COMPLETE CONTROL 


FROM YOUR 
TIMEX - SINCLAIR 1000 


By GCM Electronics, Inc. 


12 Unbuffered TTL 
Digital |/O Lines 
Direct Connection 
To TIMEX-SINCLAIR 


f 
t 


Expansion Port 


Programmable 
Peripheral 
Interface 


Regulated. 5V 
Power Source 
Using The Power 
Supply Of The § 
Computer 


9 
Ea - 8 Unbuffered 
Analog Inputs 
(O - SV.) 


Ground And 5V. 
Reference 


8-Bit Analog To 
Digital Converter 


Clock/Calendar 


Clock Batteries 
(Not Included) 


TRIAC Outputs 

- 400 V. 2 Amp 
Zero-Crossing 
Optically Isolated 
(IOC 24-4 Has 4 
TRIAC Outputs, 
lOC 24-12 Has 12 
TRIAC Outputs) 


LED Status 


Terminal Strips For Buffered Digital 
Indicators Both Inputs and Outputs 
Outputs (SOO m.a.) 


Put your Timex/Sinclair to 
work... 

Your Timex/Sinclair can be 
used for more than just 
balancing your checkbook! 
Coupled with the IOC-24, 
you now have a powerful 
control for your world. Using 
the flexibility of the IOC-24, 
you can utilize your 
Timex/Sinclair to control and 
monitor your lights, burglar 
alarm, sprinkler system, TV 
and stereo - even your 
coffee maker. 


Simplicity — the ease of 
control 

The IOC-24 has a 
programmable peripheral 
interface allowing you to 
select inputs and outputs at 
will using BASIC. BASIC is also 
used for the commands of 


MAIL ORDERS TO: 


GCM ELECTRONICS, IN 


P.O. BOX 6152 
FT. SMITH, AR 72906 
PHONE: 501-646-2100 


Dea } CHECKS 
Dmm = 
; : NO C.O.D.s 


QUANTITY DESCRIPTION PRICE TO 


IOC-24-4 189.95 
IOC 24-12 249.95 
CABLE 12.95 
SHIPPING AND HANDLING 4.95 
SHIP TO: (PRINT) 


NAME 


ADDRESS 


CITY & STATE 


ZIP 


TOTAL 
9O-DAY WARRANTY 


the input/output ports 
limited only by the amount 
of memory you have 
available. 


So what are you waiting 
for? Put your Timex/Sinclair 
to work saving you money 
and controlling the world 
around you. 


A free sample program 
with thermistor to display 
temperature and activate 
an output channel is 
provided. 


GCM 


ELECTRONICS, INC. 


P.O. BOX 6152 
FT. SMITH, AR 72906 
PHONE: 501-646-2100 


SINWARE provides these quality 
machine code programs for the ZX81/ 
TS 1000: 


HOT Z 


HOT Z is a disassembler, editor and 
debugger that provides a new ap- 
proach to help you solve the mysteries 
of programming in fast and efficient 
machine code. Let the reviewers say it 
for us: 


“The more experienced ML pro- 
grammer will find the use of HOT Z 
guite refreshing. The usual hassles 
of code entry, editing and debugg- 
ing are virtually eliminated.” 

SYNC 2/6 


“If you program in machine lan- 
guage and need the best tool for 
the job, buy HOT Z. This program 
will never lose its value.” 

SOQ #1 


Z EXTRA 


Z EXTRA is a display manager and data 
filer that lets you enter text, data or pic- 
tures directly to the screen and save 
them in groups in memory, on tape or 
in print. Display them sequentially or in 
scrolls through one another or use them 
in your BASIC programs. 


S.U.N. Newsletter: “We found this to 
be the best display manager pro- 
gram we've seen for the ZX/TS. Ty- 
pically of Sinware, the documenta- 
tion is more thorough than you will 
receive with any other package.” 


TSUG Newsletter: “Z EXTRA bears 
out the reputation of its creator as 
well as the implication of its... 
name: an extra dimension is added 
to your computer with Z EXTRA.” 


SINWARE’s other products are two 
new utilities for BASIC programmers: 
STEP, the ultimate BASIC debugger, 
and Z-TOOLS, for the convenience of 
merging, renumbering and tape verifi- 
cation. 


PRICES 

STEP ec aie ak ee oe be ea Cassette $14.95 
Z TOOLS ios ke a Cassette $14.95 
ZEXTRA re SPL Cassette $19.95 


HOT Z...16K or 32K + Cassette $19.95 
HOT Z-E....Four2716EPROMs $40.00 


SINWARE 
Box 8032 
Santa Fe, NM 87504 


66 


Using, continued... 


Bob Norman 
Financial Analysis 
16K RAM. Cassette: $8.95. 

Financial analysis of retirement and 
investment savings. Standard savings and 
IRA’s, showing tax, interest, retirement 
income, inflation, comparison, and plot. 


Orbyte Software 
Home Budget 
16K RAM. Cassette: $14.95. 

Keep running balance of family 
finances. Details sample budget. 3 major 
categories: Income, Deductible Expenses, 
Non-Deductible Expenses. Small busi- 
nesses can also use it as a tool for finance 
management. 


Oxford Computer Publishing Ltd. 
Finance Manager for Spectrum and 
TS2000. 

48K RAM. Cassette: $19.95. 

MC program handles over 2000 en- 
tries in up to 255 separate accounts. Full 
Screen input, cursor control, and 
amendment, makes this program 
particularly easy to use. Facilities in- 
clude automatic double entry, instant ac- 
count balances, regular payment facility, 
and cash flow calculations. Individual 
accounts may be listed, updated or 
printed out. 


A Parsons 
Treasurer 
16K RAM. Cassette: $9.95. 

Analysis Book keeps records of up to 
15 columns, user-defined either credit or 
debit, 400 entries can be made with date 
and detail shown. Balance readily acces- 
sible. Full accounts can be printed. Plus 
Address book for 110 Names and 
Addresses, Search by Name, Category 
number, Town, Street, even part of a 
name, and print mailing labels. 


Peak 
Dataplot 
16K RAM. Cassette: $10. 

Dataplot plots stock prices, scientific 
data, etc. Plots positive and negative free 
formated data stored in REM state- 
ments. Can be used with your printer. 
Draws and lables axes, titles your plot, 
draws figures, plots from an equation 
and will plot on a grid. 


Sensible Technical Solutions 
Easy Z Financial Transactions (413). 
64K RAM. Listing: $10; Cassette: $15. 
Works with 16, 32, 48. This program 
will handle all your different accounts 
(credit card, store credit, checking, sav- 
ings, etc.). Menu driven, self-modifiable, 
load and save on tape, complete prompt- 
ing through entire program). Tax 
deductible. 


Easy Z Accounting (128) 
64K RAM. Listing: $15; Cassette: $20. 
Works with 16, 32, 48. Complete dou- 
ble entry accounting system. Journals 
(cash receipts, cash payments, pur- 
chases, sales, general, and petty cash). 
Ledger (cash, expenses, inventory, 
merch. sales, merch. purchaseSo, other 
accounts can be entered to customize 
program. Outputs to screen, standard 
Tax Deductible. 


M. Sieder 
Programs 16-101 to 16-106 on one cassette 
(6 programs): $75. 


Sales Journal (16-101) 

16K RAM. Cassette: $15; listing: $2. 
Work sheet for cash, cheque, and A/R 

sales giving printout of detailed distribu- 

tion and totals for G/L entry plus verifi- 

cation. 


Accts. Receivable (16-102) 
16K RAM. Cassette: $15; listing: $2. 

30 accounts by name and number with 
10 entries each plus balance. Schedule of 
A/R, transfer of balances for new entries 
plus printout. 


Accts. Payable (16-103) 
16K RAM. Cassette: $15; listing: $2. 
Similar to Accts. Receivable. 


Aux. Bank Book (16-104) 

16K RAM. Cassette: $15; listing: $2. 
Work sheet with distribution, totals, 

and printout for G/L entries of 45 cheques 

in and 30 cheques out per day plus deposit 

slip printout. 


General Ledger (16-105) 
16K RAM. Cassette: $15; listing: $2. 

30 identifiable balance and P+L 
accounts. Ten entries each per account. 
Trial balance and daily P+L statement, 
printout, transfer of balances for new 
entries. 


Simulsion 
Bank and Tax Register 
16K RAM. Cassette: $9.95. 

A check register to store a year’s trans- 
actions: number, date, category, and 
amount for each item; recall by any com- 
bination of factors (e.g., all checks over 
$100 dated 1/83 to 3/83 in the category 
AUTO EXP). Easily add, change, and 
delete entries. Can print with headings on 
screen or printer with totals and grand 
totals. 


Skinner Electronic Enterprises 
Personal Finances. Part I. 
16K RAM. Cassette: $12.95; listing: $7.95; 
$2 s&h. 

8 routines using compound interest to 
calculate accumulated interest, time to 
accumulate, rate of return, investment 


SYNC Magazine 


required, future value, future value with 
daily compounding, conversion to effect- 
ive annual rate, and conversion of addon 
interest to APR. 


Personal Finances. Part II. 
16K RAM. Cassette: $12.95; listing: $7.95; 
$2 s&h. | 

3 routines for calculating IRA account 
balances using single annual, regular 
monthly, or irregular monthly deposits. 5 
routines using simple interest to find total 
interest paid, time to accumulate, rate of 
return, investment required, and future 
value. 


Softsync, Inc. 
Advanced Budget Manager 
16K RAM. Cassette: $16.95. 

This program combines a financial data 
base with a forecasting program. Choose 
from the menu to input or review data, 
analyze income/expense (projected and 
actual) by month, category or by total; 
six income and twenty-four expense cat- 
egories; built-in save feature and print 
routine; easy to operate with self- 
explanatory instructions. 


Software Development Associates 
Home Budget (F100) 
16K RAM. Cassette: $12.95. 

A home financial planning program 
that lets you budget your expenses into 
15 accounts. A blank cassette is included 
with Home Budget on which to save 
your data. 


Auto Record Keeper (F101) 
16K RAM. Cassette: $15.95. 

Keep a record of such items as gas, 
oil, repairs, car payment, insurance etc. 
Various screen displays provide year to 
date expenses, miles per gallon, and cost 
per mile. 


Syber, Inc. 
Financial Manager 1000 
16K RAM. Cassette: $15.95. 

A completely integrated business/ 
home Budget, Expense, Checking, and 
Financial Management System. Main- 
tains monthly and year to date data for 
up to 35 user defined categories; nu- 
meric and graphic output along with 
menu driven operation. 


SyncMaster 
Financial Analyzer 
16K RAM. Cassette: $14.95 + $1 s&h. 
Three programs include: (1) Calculate 
payments, interest rate, total amount or 
period; enter three, calculate fourth. (2) 
Loan amortization with optional prin- 
ciple pre-payment; save lots of money on 
your mortgage. (3) Future value of an 
IRA, using variable interest 
assumptions. 


May/June 1983 


Timeworks, Inc. 
The Money Manager. (1301). 
16K RAM. Cassette: $16.95. 

Input sixteen budget and actual cat- 
egories on a monthly basis for a 12-month 
period. Full analysis is provided including 
budget and actual comparisons, and detail 
by individual items. Bar charts provide 
graphic representations of budget and 
actual amounts for each period. Store 
information on tape for updating, re- 
vision, or reference. 


UAS 
Budgeting. (C7001). 
16K RAM. Cassette: $7.95. 

The program guides you through the 
generation of a practical way to budget. 
Significant expenses are highlighted and 
suggested corrections are derived by re- 
cursive routines. 


Spreadsheets 


Banta Software 
Screen-Calc 
16K RAM. Cassette: $19.95. 

Electronic spreadsheet; up to 450 
user-defined entries, input data or cal- 
culate results; any entry can be defined 
in terms of any other entry; built in sum- 
ming and averaging or rows and col- 
umns; any entry can be located by name. 
Useful for business, budgets, bookkeep- 
ing, or inventories. 


Hensley and Associates 

Economical Accounting Spreadsheet Pro- 
ram 

16K RAM. Cassette: $15. 

A powerful multi-calculation and 
“what-if?” tool with which to generate an 
endless array of reports, charts, forecasts, 
schedules, projections, and analyses. Our 
product allows access to the program 
itself to enable the user, with a little study 
of simple arrays, LET statements and 
FOR-NEXT loops, to completely design 
his own spreadsheets to fit his exact 
needs, rather than the program’s. 


Kopak Creations, Inc. 

Vu-Calc 

16K RAM. Cassette: $19.95. 
Constructs and generates, calculates, 

large tables for budget sheets, financial 

analysis, and projections. 


Memotech Corporation 
Memocalc 
$49.95. 

Memocalc, our spreadsheet analysis 
software on EPROM enables TS1000 
users to perform complex number 
crunching routines with ease. With a 
64K RAM a table of up to 7000 num- 
bers with up to 250 rows or 99 columns 
can be specified. 


eee 


me mi e ca 
pleasan{rees 


PICK OF THE CROP FOR 16K! § 
PROGRAMMING 


* All lines including edit lines 

¢ Not half sheet—full 82x11 
premium erasable paper 

e 50 sheets per pad 

¢ Free coded example of 
W.C. Fields 
mien Card for easy reading 


PADS 2 2.19 ea. (+ .75/pad P&H) 


eee ) See what a machine code master 
r & award-winning animator can do 
for your '81/1000 


a. ZXAK-MAN Attention to detail makes this 
version the best. Control of every move in 
flawless M.C. animation. A must. ..... 12.95 
3-D WORM MAZE Net worms and return 
to box. Remember which box or more escape. 
Vern addicting. S e e otn ere pees 12.95 
BOGGLER Word game that builds vocab- 
ulary. Masterfully written w/graphics. Great 
party game (2-4 players). .................. 12.95 
5 FUN ‘N’ GAMES PAK 4 educational-1 
for fun: States game, Mini-boggler, History | 
& He ZXak-Nanme os ae 12.95 
BASE CON MC. aid convert whole or 
fractional numbers between binary, octal & 
hex (or vice versa): A Aa ea 9.95 


122252 
YOUR cue. > 
TANK IS 
RUPTURED 


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City of Xon! 


Scrolls 3 dimensionally. Your shadow follows 
below as you avoid hazards. Various 
weaponry help you rack up points. Most 
impressive graphics your machine can Cys. 
exNibt wM CO al E ERa aes 19.95 


Please add 1.50 per cassette postage & handling 


ORR 


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GRAPHICS AtoZ “As 
This invaluable manual concentrates on graphic 
programming. For novice or pro with '81/1000 or 
Memotech’s HRG there’s something exciting: 


e Zp Drawno || $ Graphics: E o cicionaty 

e Shapes @ Plot 3-D (cover) 

e Animation x4 © M.C. control (speed 

e M.C. listings screen fill 34x) 

e Print below 4 @ HRG disassembly 
or to right NA o New call addresses 
of display! 


184 pages...17.95 ppd 


Chapters on mach code beyond other texts. All listings ready to 
run. Our programming form included. 


15% discount extended to orders in before June. Release set now for mid June. 


ee TR GES «GEE EEE Ee) 
order any 3 programs at 10% off 


tf arw] TEM [EA [P&H] PRICE 
| [2xXAK-MAN 12.951 4.50] 
| [eityotxon oasa 
| [WormMaze (12.95, 1.50) o AA e 
E oep ooo |X EE, a 
[|Basecon o peaa T o 
as ee L I Soi 
EC’ A a Pee ec * 
| [Graphicsa-z______fi7.95[ppa | information 
Ee ae 
products. 


fyppnumum., 


Pleasantrees 

Programming 
7760 N. Hopdown 
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NAME 
ADORESS 


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ALO UL Pua 


DON T lim ae is 


‘or Standard ard sinciair 2X81/Timex 751000 
eJ.K. OVIE 


| j 
| 
Ae 
| For 16K Sinclair ZX81/Timex TS1000 
i © J.K. Greye 1981 
| S Sok 
i 


For 16K Sinciair 2x81/Timex TS1000 
© J.K. Creye 1981 


GAMESTAPE 1 

GAMESTAPE 1 with 11 great games for your 
standard TS1000/ZX81 has achieved to fit into 
the standard machine what others require 16K 
to do! Games ranging from arcade games and 
word games right through to an amazing 
machine code wallbusters game! “I was very 
impressed with the amount which had been 
packed into the standard machine” — 

ZX Computing. “The wallbusters game is the 
best TS1000/ZX81 version of this game! have 
seen” — Which Micro. 


GAMESTAPE 2 

GAMESTAPE 2 brings you three great programs 
for the TS1000/ZX81 with 16K: STARFIGHTER — 
a superb machine code space battle, with 
twinkling stars and stunning explosions! 
PYRAMID — a thinker’s game; ARTIST -the 
ultimate graphic designer's aid. 


i |_— % 
I anae aia 43 
For 16K Sinclair ZX81/Timex TS1000 
x © J.K. Creye 1981 
I » 
| z á ee ee 
Q j 


“The gamestapes are a fine range of software. 
All programs ran the first time with no bugs. 

All can be recommended” — Which Micro? 
“Good value for money” 

— Computer & Video Games. 


GAMESTAPE 3 - CATACOMBS 

GAMESTAPE 3 for 16K TS1000/ZX81 is a multi- 
level graphics adventure that is not limited in 
its scope. Each level can contain up to 9 rooms, 
8 passages, as well as monsters, food, gold, 
traps, phantoms... “An excellent addictive 
game which will keep you amused for hours” — 
Computer & Video Games. 


GAMESTAPE 4 - 3D MONSTER MAZE 


GAMESTAPE 4 for 16K TS1000/ZX81 is the game 


to top ali the others! Unbelievable graphics! 

Can you find your way through the 3D Monster 
Maze, with aT. Rex chasing after you? You've 
never seen anything like this! “If I had to choose 
just one program to impress an audience with the 


capabilities of the TS1000/ZX81, then 3D 
Monster Maze would be the one” — ZX 
COMPUTING “3D Monster Maze is the best 
game! have seen for the ZX81” - Computer 
& Video Games “The graphics are superb” — 
Which Micro? “Brilliant, brilliant, brilliant!” — 
Popular Computing Weekly. 


GAMESTAPE 5 - 3D ORBITER 

GAMESTAPE 5 for the 16K TS1000/ZX81 is the 
ultimate space game! In amazing 3D graphics, 
you battle against marauding invaders. Using 
the keyboard like a joystick, you can climb, bank 
and dive in 3D, as the ground slips past and the 
bad guys prepare to attack. “Amazing graphics 
effects are created as the enemy draws closer, 
more and more detail appearing as the 

flying saucers zoom in. Another winner!” — 
Sinclair User “The best way | can sum up 

this gane is ‘GREATA’ — ZX COMPUTING. 


COMBAT FLIGHT 

In this fantastic new arcade game you 
are the death-defying commander of 

a sturdy fighter ship, flying through 
dangerous mountainous terrain, while 
alien ships hell-bent on destroying you 
are coming at you. Beware! Even if they 
don’t get you they may leave dangerous 
flak. Don't crash into the mountains and 
don't fly too high, either way you'll never 
live to fly again! Keep a steady hand 

at all times and your wits about you. 


SPACETREK 

In this fantastic space simulation the 
exciting TV program now comes to your 
Sinclair ZX81/Timex TS1000. You are 

in command of the Starship Endeavour, 
and the galaxy—made up of 64 sectors- 
is being invaded by Drakons. Your 
mission is to seek them out and destroy 
them before time and fuel runs out! 
Five degrees of difficulty from easy 

to impossible! Good luck, Commander! 


TOOLBOX 

Toolbox contains three superb utility 
programs on one tape: 

DIRECTORY is a most useful program if 
you find yourself with tapes of programs 
and cant remember what's on them- 
This program will ‘listen’ to the tape and 
display the names of the programs on 
the tape. RECORD is a program that 
allows you to save data onto tape and 
read it back into the program at a later 
stage. RECORD can be incorporated into 
your own BASIC program, and is ideal 
for name and address info, short data 
blocks, etc. Its use is limited only by your 
imagination. TOOLKIT. The amazingly 
compact TOOLKIT allows you to achieve 
better graphics effects in your own 
programs, as well as help you write your 
BASIC programs more quickly and more 
efficiently. With commands such as, 

‘No Inverse’, ‘Inverse’, ‘Reverse’, ‘Fill’, 
‘Free’, ‘Renumber’, ‘Find & Replace’ 

and ‘Open’ you will find this a most 
useful program. 


THE COMPLETE SINCLAIRYZX81 & TIMEX 
TS1000 BASIC COURSE 

The SYNC review says: “It has been said, ‘It’s not what 
something costs that counts; it’s what it’s WORTH!’ 
That certainly seems true in the case of The Complete 
Sinclair ZX81 & Timex TS1000 Basic Course. 

The course begins with the assumption that you 

know practically nothing about computers or 
programming and holds your hand pretty tightly. 
However, later chapters go into depth on some 

very valuable material for those intending to do 
significant programming on the ZX81/TS1000. 

If you have any interest in learning to program 

your ZX81/TS1000, especially if you are new in 
computing, | would recommend this course highly.” 
The course comes in a ring binder and is available 


for $34.50 


cassettes are also available for $7.50 


, Sz 


UNDERSTANDING YOUR ZX81 ROM 

by Dr. lan Logan 

SYNC Magazine said: “SYNC readers will recognize 
Dr. Logan as a major ZX80/81 expert whose writings 
are well worthwile. Understanding Your ZX81 ROM is 
no exception. The book falls logically into five parts: 
a brief review of the Z80 CPU, next a quick intro- 
duction to the internal arithmetic and number base 
manipulations; a discussion of the Z80 machine code 
instructions grouped by function; a detailed exam- 
ination of the relevant parts of the 8K ROM; Dr. Logan 
introduces machine code programming by treating it 
as an extension to Basic; and complete listings of the 
more important 8K ROM routines are given as well as 
the usual tables of machine code language 
instructions, decimal-hexadecimal conversions, and 
keycodes. Understanding Your ZX81 ROM should be 
high on your list.” Now available for only $14.95 


MACHINE LANGUAGE PROGRAMMING 
MADE SIMPLE 

Michael Roberts, SYNTAX Magazine wrote: 

“| wanted to review this book because I’m the person 
it was written for. | taught myself BASIC and can 

now do most of the things | want to with it. | felt that 
Machine Language would be a good addition to 
speed up some programs and improve display. The 
idea of Machine Language ‘made simple’ appealed 
to me. It’s the best explanation of Machine Language 
for Machine Language beginners I've seen. 


... READ THE REVIEWS: 


30 PROGRAMS 
" FOR THE 
SINCLAIR 


ZX81 ee, 


Its friendly style is painless rea 
analogies help make this lan: 
This introduction is a must.” N 


only $14.95 
NOT ONLY 30 PROGR. 


is a collection of programs 
ZX81/TS1000. Not only Be A 

Blackjack, Wall Breaker, incluga e 
1K Draughts, but also ec ROM 
programming hints, sp¢ 
PEEK and POKE explai 
ZX Computing said “T| 
can be crammed into 
Now available for or 


Se euseaeaan 
Seansrereaaaan 
Seenesneaeee 
@Saaenaaaree i « 


ZX81 ROM Disassemh 
Dr. Logan and Dr. Frank O'Hara eH 
all routines in the ROM and comment on eacho ; 
This book is a must for the experienced programmer. 
L'Ordinateur Individuel (the leading French personal 
computing magazine) said: “Dr. lan Logan has 
disassembled the 8K monitor program of the ZX81/ 
TS 1000. For those who want to write programs in 


The course available 


for $34.50 : 


cassettes are also avaftablA fo, $7. 0 


machine language, it is PART A which is the more 
interesting, because it contains the majority of BASIC 
commands, while Part B is far more technical, 
comprising essentially of the ZX81/TS1000's floating 
point calculator. In conjunction with Understanding 
Your ZX81 ROM this book allows anyone well 


award 
winning 
software! 


E oraers to: MELBOURNE HOUSE SOFTWARE INC. Visa and M/C orders Dealer orders anf queries: 800/251-5900 W 
mw Dept. CS 347 Reedwood Drive, Nashville, TN 37217 can be phoned in: 615/361-3738 (ask for a Melbourne House operator) me 
= TAPES: BOOKS: a 
m U 13941 Gamestape 1:11 Programs-1K $14.95 QO 25895 The Complete Basic Course $3450 E 
O 13942 Gamestape 2: 3 Games-16K $14.95 O 25957 Machine Language Programming g 
€E #5 13943 Gamestape 3: Catacombs Made Simple $14.95 
P Adventure -16K $14.95 1 20922 The Complete Timex/Sinclair = 
E O 13944 Gamestape 4: 3D Monster Maze -16K $14.95 ROM Disassembly $19.95 @ 
O 13945 Gamestape 5: 3D Orbiter-16K $14.95 © 26025 Not Only 30 Programs $9.95 E 
L] 2 ane eb ee k a pee O 25913 Understanding Your ZX81 ROM $14.95 a 
E 5 26318 Wall Busters-1K $14.95 O 51539 gs Outs of the Timex $12.95 e 
M5 26472 10Exciting Programs-1K $14.95 
@ OC 26284 Reversi-1K $14.95 = 
O 26406 Toolbox-1K $14.95 ; | 
= O 26490 Basic Course 2 cassette pack $7.50 TOTAL: $ 
as O 14026 Combat Flight-16K $14.95 Residents of CA, MD, TN, please add sales taxes: e 
im Add $2 for Shipping & Handling, foreign orders add $6: a 
W Enclosed is my check or money order for $ TOTAL: $ E 
e Please charge my O Visa or O MasterCard Card # expiration date SYNC 5/6 = 
g Signature Name a 
@ Address ee a eee i Pes 


MELBOURNE HOUSE SOFTWARE 


Using, continued... 


Mindware Inc. 
From Eagle Sales 
Matrix Planner 
16K RAM. Cassette: $22.95 plus s&h. 
All purpose worksheet for budgeting, 
job costing, data analysis, business plan- 
ning, estimating, engineering, and home 
use. Sets up rows and columns of inter- 
related numbers, formulas, and words, 
“what if” questions (e.g., price revisions, 
lowered tax rates) can be instantly cal- 
culated to reflect changes on all variables. 


P&B Software 
Video-Calc 
16K RAM. Cassette: $9.95. 

Electronic spreadsheet with scientific, 
home, and business calculations. Sup- 
ports ZX printer, has all ZX81 
mathematical functions. 


Simulsion 
Easy Calc 
16K RAM. Cassette: $9.95. 

Does math directly. Enter a problem or 
formula and the answer appears. Ten on- 
screen variables, A to Y, for problems 
like (4*D)/Tan A. Each can be an equa- 
tion itself; run systems equations with a 
single keystroke. Various configurations 
included such as a printer-calculator 
which produces columnar output on the 
printer with subtotals and totals. 


ZX81 Programs 
Compusheet 
16K RAM. Cassette: $10. 

Electronic spreadsheet program. Enter 
data or formulas in a row and column 
format: Formulas include all ZX 81 
numeric functions plus special ones for 
adding up a series of numbers or for 
looking up tables. Instructions. 


Fastsort 
16K RAM. Cassette: $10. 

MC program that sorts up to 255 float- 
ing point numbers stored in a Basic array 
in 4 seconds. A comparable Basic pro- 
gram takes over 16 minutes in the FAST 
mode. Instructions. 


Checking 


American Micro Products, Inc. 
Checkbook 
16K RAM. Cassette: $17.95. 

A means of keeping a personal check- 
book. Allows the user to enter such infor- 
mation as dates, the check payee, a check 
use code, and the check amount. Main- 
tains a running balance and searches the 
database using several different criteria. 


Cottage Technology 
ACZ Check Register 
16K RAM. Cassette: $9.95. 

Does more than balance the check- 
book; summarizes expenses by accounts; 
allows allocation of one check to several 
accounts; this is a stand alone system; it 
can directly transfer the accounts sum- 
mary into the ACZ General Ledger. 


CRC Software 
Check Book 
16K RAM. Cassette: $12.95. 

Keep track of all your checks. Gives 
balance after each entry. Lists checks by 
month. Search for the checks by Payee 
or by check number. 


Statement Aid 
16K RAM. Cassette: $9.95. 

Helps you to balance your checkbook 
against your bank statement each 
month. 


Custom Electronics Device Corp. 
Checking Account 

Designed to work with E-Z Bookkeep- 
ing but can be used alone. Keeps up to 
200 checks in one file. Checks are num- 
bered automatically; categorize by ac- 
count or vendor number. Enter a number 
and the name is typed for you. Accounts 
and vendors can be changed as you want. 
Write for details. 


SINCLAIR 
ZX81/TS1000 


Protect your ZX81 from dust, grime and spills with a 
quality dust cover from The Computer Trader. The form 
fitted cover provides protection during storage or 
transport. Available colors: black, tan, royal blue, 


brown, navy blue and burgundy. 


DEALER & DISTRIBUTOR INQUIRIES WELCOME 


Please include $1 postage and handling. Allow 1-3 
weeks for delivery. Specify color and amount. *Califor- 


nia residents add 6% sales tax. 
The Computer Trader 


P.0. Box 20976 
San Diego, CA 92120 


70 


NYLON 
FORM FITTING 
DUST COVER 


(619) 283-9273 


time controller. 


compiled. 


Example of Multi-tasking: 


TASK taskname programname (ENTER) 
(This creates a task called taskname.) 
IN 20 TM taskname EVERY 1 TS taskname (ENTER) 
(This schedules the task after 20 minutes have elapsed. 
The programname will run every 1 second.) 
TASK OPTIONS: LOCK; UNLOCK; START; STOP; RUN; 
You can run up to 10 tasks simultaneously; Each task 
has its own 32 bit clock which is modified every clock 


tick (1/60th second). 
MULTI-FORTH comes in a an EPROM on a circuit board and 


MULTI-FORTH for the 
2 K+ SINCLAIR - $49.95 aiii 


Multi-tasking FORTH for the ZX81 and 
TIMEX/SINCLAIR 1000. MULTI-FORTH 
_ turns the SINCLAIR into a flexible real 


contains most of the standard fig-FORTH words. The BASIC 
chip plugs into the board to allow switching between FORTH 
and BASIC. 


UNIQUE EDITOR: The visual editor is on split screens and is 
cursor oriented. Characters can be inserted, or deleted. 
Lines can be inserted, deleted, compiled, or stored tem- 
porarily in the pad. The entire editor screen can also be 


MULTI-FORTH turns the SINCLAIR into a real time controller of: 
-Data acquisition 
-DC Servo Controller 


COMPLETE DOCUMENTATION 
CALL OR WRITE FOR FREE INFORMATION 
WE PAY FOR SHIPPING AND HANDLING 


Tree Systems @ Suite 233 
3645 28th St., S.E. @ Grand Rapids, Ml49506 
@ (616) 949-8506 © 


-Home environment controller 
-Even a model railroad controller 


SYNC Magazine 


_ = 


YORK IO 
BASF-DPS 


WORLD STANDARD TAPE 


MONEY BACK 
GUARANTEE 


a COMPUTER GRADE 
cranes BLANK CASSETTES 
DATA TRAC / C-05, C-10, C-20 


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INTRODUCTORY OFFER! 


ORDER 2 DOZ CASSETTES AND 1 CADDY 
GET 1 CADDY FREE! 996p? ass ™ 


OFFER EXPIRES AUGUST 1. 1983 


TYPE HARD BOXES CASSETTE LABELS 


ely on 
ETT e you can r 
RSS ut to the o/, of the ous 

ey moni r ecially bu uality nd s nt surprise 

computer with psolutely pian Kinson 

r 

meter an he tap om Pa 

dropouts OR Madison: ~ «YOU'VE TRIED THE REST, 


verton., NOW BUY THE BEST” 


E car: zamona saaan Sey 
ORDER NOW... YORK 10 ‘Computerware 
MAIL TO: 


æm m m as es as es ORDER FORM m om om m m e m oy 


Each cassette 
ITEM 1 DOZEN 2 DOZEN TOTAL includes two YORK 
C-05 O 7.50 o 13.50 ee ee 


10 labels only. 


24573 Kittridge St., Dept. S-4 Canoga Park, CA 91307 


Ci State/Zi 
Sc aS sae re cm ee 
Computer make & model Disk?(y/n)___ 


g C-10 1 8.00 O 14.40 Pa gl thot Boxes are Ps k 
7 separately. Ship- 
z C-20 1 10.00 G 18.00 Sore sine aie Dy | 
Hard Box by 2.50 O 4.00 teen U.P.S. unless 
E Storage Caddy @ $2.95 ea.: Quantity: Parcel Post re- id 
FREE: Quantity: To Boxes, g 
caddies, and blank 
B [Blank iabeis ELU Ty 0.007100 fr}. Caries. angola 
SUB TOTAL | | shipping charges g 
g Calif. residents add 6% sales tax ||- when ordered with 
Shipping/handling 1 doz. $2; 2 doz. $3.50; cassettes. When E 
Ẹ 3 doz. $4.50; each additional doz. $.50. anti now 
è cassettes, shipping 
g For Parcel Post instead of UPS ADD $1 See aae: Gives g 
Outside Continental USA, ADD $2 RERS $1.00/doz.., 
"(ee CET ee 
each. MINIMUM 
Check or M.O. Charge to SAIPPING) A 
-7 enclosed [ ] Credit Card: [] VISA [] MASTERCARD HANDLING ON 
Į C PLEASE SEND QUANTITY DISCOUNTS ae 
x Card No. Exp. 5 
ğ Name $ 
§ Address 5 


CLEVA computer ware 


7X81 TS1000 


ENTERTAINMENT PROGRAMS 
SNAKEBITE Eat the snake before it eats you. 


BATTLE Demanding game of military strategy 
that can be played by 1 to 4 players. 


STARSHIP TROJAN Pit your wits against the dangers of 
outer-space and try to save your damaged 
space-craft. 


PRINCESS OF Face the monsters hiding in the 

KRAAL underground and save the Princess. 

STARTRACK Use photon torpedos to kill off the Klingons. 

FUNGALOIDS Save civilization by bombing the ever- 
multiplying fungus. 

CRAZY-CARDS Totally addictive for cheats. 

CUBE Use your computer to solve the mysteries 


of the Rubik Cube. 


TWO GAMES FOR THE PRICE OF ONE (ONLY $12.95) 
All programs 16K 


MACHINE LANGUAGE PROGRAMS 

AIE MIDEER at vce Sys eaa a a dh ees ert Peg aN A $16.95 
2 pass assembler written especially for the ZX81/TS 1000 (16K). 
It is simply the best assembler available for those who wish to 
write their own machine code programs. It is designed to run 
alone, or together with the dis-assembler, and/or the de-bug- 
ging program. These provide a system for writing, editing, check: 
ing and testing machine code programs that is second to none. 


DIB See tid ok ee od en ea N $16.95 
Allows you to read the ZX81/TS 1000 ROM (16K) with the best 
dis-assembler program available. It is written specifically for 
Sinclair/Timex computers, and unlike some programs modified 
from Intel 8080 dis-assemblers it gives full Z80 Mnemonics. 


E-Bay eh es) a eee ia a $16.95 
Makes writing machine code programs easier. Works entirely in 
decimal. Therefore hexadecimal is not needed. (16K) 


PROGSTORE/TOOL-T A oO pe Oe Sees $16.95 
Progstore contains a series of machine-code routines that cre- 
ate 3072 bytes of user space and then transfer into this space 
machine-code routines that allow the transfer of a BASIC pro- 
gram into the user space after running this program allow a 
return to another BASIC program stored conventionally in low 
memory. 


TOOL-KIT 

Progstore toolkit contains four “utility” programs specially 
written to operate from progstore. Having loaded progstore in 
Toolkit can be loaded and then progstored with RAND USR 
32500. Each program can be run by RAND USR 32723. 


HEXLOADER—This program allows machine code programs to 
be rapidly written in hexadecimal. 


HEXLISTER—This program complements HEXLOADER by allow- 
ing machine code programs to be listed in hexadecimal. 


PROOMERGE 05 SS ce Ete aS eo eee $16.95 
Progmerge contains a series of machine-code routines which 
allow BASIC programs to be stored whole or in part. 
Please send check or money order. NO CASH! 
New York Residents only add 814% Sales Tax. 
SHIPPING AND HANDLING 
Add $1.50 for first item and $.50 cents for each additional item. 
Name 
Address 
City State Zip 
Mail To: CLEVA Computer Ware 
P.O. Box 2736 
Brooklyn, N.Y. 11202 (212) 875-1207 


Using, continued... 


Heath Computer Services 
Checking (SBG-56833). 
16K RAM. Cassette: $9.95. 

Lists up to 25 deposits showing de- 
posit and date; lists up to 80 checks; lists 
by account the total of the checks writ- 
ten; keeps total of checks written and 
balance left in account; adds interest, 
subtracts service charges; searches for 
check by number, name, date or 
amount; prints lists of deposits, ac- 
counts, and checks with ZX or compat- 
ible printer. 


Hilton Computer Services 
Personal Banking System 
16K RAM. Cassette: $20. 

Banking program supports datafiles; 
automatic posting of standing orders on 
correct dates; facility for listing (with 
printout) by category with totals. 


PBS Bank Reconciliation Module 
16K RAM. Cassette: $10. 

Used in conjunction with Personal 
Banking System to match bank statements 
and PBS records automatically. Highlights 
all discrepancies, lists uncleared checks, 
etc. and offers full correction facilities. 


D. Lipinski Software 
Check 
16K RAM. Cassette: $10. 

A check book for 200-400 trans- 
actions. Automatic check number and 
date entry. Listing of items by outstand- 
ing items, name, date or check number 
either to the screen or printer. Entry er- 
rors are correctable. With simple 
reconciliation you get the bank state- 
ment balance. 


R. Panwar 
Checkbook Record 
16K RAM. Cassette: $14.95. 

Store checks, deposits, running bal- 
ance.. Find total deposits, total checks. 
Search by user defined codes for various 
categories. Helps in budgeting. Stores 
data for the whole year. 


Simulsion 
Checkbook Balancer 
2K RAM. Cassette: $9.95. 

Checkbook Balancer: Reconciles your 
bank balance to your checkbook balance 
with a running tabulation and display of 
both; stores and lists up to 100 uncleared 
checks and deposits. Graphic Check- 
book: Graphic presentation of your ups 
and downs; generates a four year bar 
graph of your monthly bank balance. 


Timeworks, Inc. 
The Electronic Checkbook. (1304). 
16K RAM. Cassette: $16.95. 

Organize and record checking trans- 
actions: check or deposit number, de- 
scription or comment, date, classification 
code (groceries, entertainment), and 
amount. Checking balance is computed. 
Sort and recall transactions by date, de- 
scription, and classification. A real help 
at tax preparation time. Store up to 1000 
transactions on a single C-60 cassette. 


Z-West 

Checkbook Helper 

16K RAM. Cassette: $4.95 plus $1 s&h. 
The computer steps you through the 

program asking for information necessary 

to examine your checking balance; 

informs you of any error or balance of 

your account. 


ZX-Panding, Ltd. 

Checkbook, Income Tax, and Budget 
Organizer 

16K RAM. $13.75 plus $1.25 s&h. 

Ten jobs in a menu-driven format. 
Checks and deposits are totaled and item- 
ized under user-defined categories for 
budget planning and income tax prepara- 
tion. Makes checkbook balancing easy 
and 90 transactions can be manipulated 
at one time with 16K. 


$ 230. 
BUFFERED BUSS- 


bare board 


DEVELOPMENT BOARD: kit $65. 


3 5. WITH CONNECTOR AND MANUAL. 
APPLICATIONS BOOK FOR ‘BUSS’: Plans & programs for 8255 port & EPROM PGR. 40 pgs. $10. 


Instrumentation & Control“ 


ANALOG INTERFACE BOARD 


8 channels A/D + 8 channels D/A. 1.6uS A/D convert time. Uses 
BASIC or machine code. Does NOT need Buffered Buss. Includes 
parts for piggyback to ZX/TS & RAM. Many jumper and 
switch selectable options. Has features which allow 
easy interfacing to other micros. Tested on ZX/TS, 
Apple, TRS-80, CBM 64, others. Manual w/software. 
You must see spec sheets to appreciate this board. 


SEE ARTICLE 
IN MAR SYNC. 


NEW 


SOFTWARE 
FOR ANALOG 
BOARD: 


DUAL TRACE SCOPE 
100 Khz w/zoom $25. 
Optional probes $10. 


Fast Fourier Transform 
in Z80 code for spectral 
analysis, 256 point. Inquire. 


CURE CRASH 
PROBLEMS ! 
Gold plated ribbon cable 
connectors to fit ZX/TS & 
peripherals. 


<ASSEMBLY w/8” cable $18. 


SEE ARTICLE IN 
JAN SYNC. 


U x E MODULATOR 
switch to ch. 33 $1 5 
* REMOVES INTERFERENCE 
FROM YOUR TV DISPLAY ! 


This modulator is soldered on the com- 
puters circuit board in place of the 
VHF modulator. Requires soldering 
skills. We install for $10 extra plus our 
$3 shipping charge. Satisfaction guar- 
anteed or we will refund you on return 
of a working modulator. 


CO 


NECTORS 


You can add more 
connectors to the assembly 
or create your own 

from parts: 


| an Female connector 
-o | to ZS ee ope $7. 


~ Male connector to 
peripherals .......... 


omputer A ontinuum 
301 16th Ave Y SA | 
San Francisco, CA 94118 


FREE CATALOG explaining our products and applications. Write 
or call. 


TERMS: Please add $3 for shipping and handling. California residents 
please add 62% tax. To order, send check or money order or call for C.O.D. 


(415) 752 6294 


72 SYNC Magazine 


Inventories 


American Micro Products, Inc. 
Home Inventory 
16K RAM. Cassette: $17.95. 

A specialized database routine for 
keeping an inventory of household pos- 
sessions. Allow the user to search the 
files for a particular item or to list all 
items with a value above a specified 
value. 


Asia Tsucho Co., Ltd. 
Data Putting 
16K RAM. Cassette: $12. 

Outputs distribution ratio of the total 
by grouping every and all the data input; 
displays a linear graph of the ratio. Espe- 
cially suitable for uses such as calculating 
the amount sold, the purchasing cost, and 
expenses. 


Bug-Byte Software 
Multifile 
16K RAM. Cassette: £17.50. 

Versatile, multipurpose filing system. 
Number, size, and headings of files are 
user-definable. Create, modify, replace. 


Russell Brewer 
Fast-file 
16K RAM. Cassette and instructions: 
$9.95 plus $1.50 s&h. 
New time and space saving menu driven 


filing system for the TS1000/ZX81. Un- 
used portion of the file is not saved or 
loaded, but is still available to the user. 
Fast machine code searching, compre- 
hensive machine code editing. 


John B. Carson, Jr. 
U.S. Savings Bond Listing 
16K RAM. Listing: $2.50. 

Lists series, issue date, serial number, 
and denomination for 25 bonds. Edit 
functions permit: add/delete, make 
changes, increase/decrease the total num- 
ber of bonds listed. 


Data-Assette 

Inventory Control 

16K, 32K, 48K, 64K RAM. $19.95. 
Programmed to work with our ZX99 

Tape Control System or as a stand alone, 

this program allows stock control of 

units and of values with separate 

routines for receipts and returns or sales 

and shipments. SORT by code or alpha 

name. Quick access to stock levels. 


Gladstone 

Inventory Control and Stock Analysis 
(D23) 

16K RAM. Cassette: $19.95. 

First in a series. Stock control of units 
and values, separate routines for receipts, 
returns, sales, shipments, adjustments in 
units and values. Uses average cost for 


inventory value and shipments. SORT by 
code or alpha name. New feature will 
allow expansion for 32K or 64K RAM. 


Heath Computer Services 
Inventory (1) (SBG-56834). 
16K RAM. Cassette: $9.95. 

May be used for everything from 
keeping an accurate inventory for your 
business, to your personal record collec- 
tion; holds up to 150 items with com- 
ments for each; comments may be serial 
numbers, dates, prices, or location; list 
all items, searches for single item, 
change or delete any item; print list of 
items. 


Inventory (1) (SBG-56835). 
64K RAM. Cassette: $9.95. 

May be used for everything from 
keeping an accurate inventory for your 
business, to your personal record collec- 
tion; holds up to 300 items (no com- 
ments); list all items, searches for single 
item, change or delete any item, print 
list of items and quantities. 


Sales File (SBG-56831). 
16K RAM. Cassette: $19.95. 

Holds 150 products w/wholesale and 
retail prices; totals wholesale and retail 
prices; holds up to 25 accounts; records 
inventory automatically or manually; 
keeps running total of sales tax. Cash 


The CRASH GUARD is made of Heavy Gauge Bronze- 
Colored Acrylic. It has been designed to give you a 
rugged work base. At the same time, it virtually elim- 
inates crashes caused by bumping the computer or 16K 


module. 


To order by phone, call (816) 353-1690 


May/June 1983 


NAME 
ADDRESS 
CITY 


D Visa 


Please send me 
$19.95 each 

O Check Enclosed 
O Master Card 


“CRASH GUARD” 


PROTECTS YOUR ZX81 
AND 16K RAM MODULE 


$19.95 


x Eliminates crashes caused by bumping 
the 16K RAM module 

* Helps prevent accidental unplugging of 
your 16K by small children 


* Now you can move your computer with- 
out worry 


STATE 33] Vip 
CRASH GUARDS* 
Acct. No. 


Exp. Date 


Add $1.50 for postage & handling 
Allow 2 weeks for delivery 


EXPENSE CUTTER PRODUCTS, INC. 
P.O. BOX 9543 e RAYTOWN, MO. 64133 


73 


Using, continued... 


register mode identifies, totals, and adds 
sales- tax while automatically keeping 
records for your bookkeeping. Prints list 
of products, accounts, inventory. 


Sales File (SBG-56832). 
64K RAM. Cassette: $19.95. 

Holds 600 products w/wholesale and 
retail prices; totals wholesale and retail 
prices; holds up to 100 accounts; records 
inventory automatically or manually; 
keeps running total of sales tax. Cash 
register mode identifies, totals, and adds 
sales tax while automatically keeping 
records for your bookkeeping. Prints list 
of products, accounts, inventory and 
sales receipts. 


M. C. Hoffman Co. 

Universal Inventory File 

16K RAM. Cassette and manual: $16.95. 
User creates file headings following 

prompts. Auto-RUN/SAVE. Menu 

format. Two ways to search, add/delete, 

check, and more. Make hundreds of use- 

ful programs with this filing system. 


Universal Record Album Collection 


Universal Baseball Card Collection 


Get on the Control Bus 
for only $59.95 (oun? 
...and be on TIME 


8 lines departing 
(Outputs capable of driving relays) 


8 lines arriving 
(TTL COMPATIBLE INPUTS) 


I/O Board with our Real Time Clock /Calendar 


Time Month Date Year Day of Week 
23:59:59 12 31 99 7 
Features 


e 12/24 hour format 

e Battery back-up for clock 

e +30 second time correction 
e Leap year correction 


Comes Complete With 

All software needed to operate clock and 
Input/Output ports 

Expandable ports 

e Feed through Sinclair Bus connector 

to allow normal expansion 

1/0 ports and other controls mate with 
Radio Shack™ 44 pin edge socket 

90 day warranty 


Future Products 
e Touch Tone ™ encoder/decoder 
e Speech and Sound synthesizer 


beza] 
VISA 
BERN 


74 


Bult eee POR 


ule & Manual 
aes MASTER I/O WITH CLOCK 


SPECIALIZED PARTS FOR MODEL 315 

316 Sinclair edge Oey oe 46 a P 
California residents add 6% aas and eee, : 3. 95 
Send self addressed 
mame” § K AUDIO 
for catalog. 


Universal Stamp Collection 


Universal Coin Collection 


Universal Comic Book Collection 
Universal Mailing List 


16K RAM. Cassette and manual: $10.95 
plus $1.50 s&h. 


Kopak Creations, Inc. 
The Stamp Collector 

Using your TS1000 you can inventory 
up to 600 Scott numbers in a single ses- 
sion showing quantity on your hand, by 
major classification. 


Inventory 

16K RAM. Cassette: $19.95. 
Automatic Overstock/Understock 

detection, Automatic Print, Mathemat- 

ical Calculations also done at user com- 

mand, Search for an item, delete,add a 

new item, input a new inventory list. 


Autofile 
16K RAM. Cassette: $19.95. 

Electronic filing system: allows you to 
set up your own database. 


Compatible with ZX80/81 
MicroAce & TIMEX™ 1000 


All accessories can be connected together and 
separately controlled from the 1/0 Ports 


MODEL 310 ACCESSORY BOARDS 
Ato D and D to A converter 


Wireless control system (BSR™) 
Solid State AC Relay 


P.O. Box 3295 
Escondido, CA.92025-0580 
(619) 741-5132 (24 Hr. Order Line) 


D. Lipinski Software 
Inven 
16K RAM. Cassette: $10. 

Total inventory accounting program 
for quantity purchased, sold, balance on 
hand, cost, replacement costs and ac- 
crued values. Search or change item by 
description, category or stock number. 
Complete list to screen or printer. A 
description of 32 characters and stock 
number of 3 digits has 103 entries in 
16K RAM. 


List 
16K RAM. Cassette: $10. 

A data entry and retrieval program 
for groups of information. List up to 4 
categories of your choice. View, add, de- 
lete, print or mass search any info in any 
and all categories. A 16K RAM will 
yield 150 entries with 8000 characters in 
the field but may be expanded if you 
have more memory. 


Stock 
16K RAM. Cassette: $10. 

Keep count of items. Add, delete, 
search, change items by description, 
item number or category. Complete list 
to screen or printer. With 16K RAM & 
having an average description of 32 
character and a 3 digit item number you 
would have 197 items. A 20 character 
average would be 265 items. 


WIN $50 IF WE USE 
YOUR ARTWORK IN OUR ADS. 


TS-ART 


TS-ART helps you create graphics 
on the screen with a pencil, an eraser, 
about 120 brushes, a video inverser 
and a “flicker”. You can easily move 
these tools in 8 directions or along 
lines or circles which are drawn, eras- 
ed, painted with a brush, video invers- 
ed or “flickered”. You can set a dif 
ferent background to any quarter of 
the screen. You can define new 
graphic commands — for example 
one that “does” a square. Then by 
pressing only one key you can make 
any of the tools to do a square 
anywhere on the screen; so a square 
can be drawn, erased, painted, and so 
on. And the square can be rotated 
and it can be compressed or expand- 
ed to any size. And it can be used as a 
building block for other commands 
you define. And you can save or print 
the artwork. And... 

TS-ART is fun; is a screen editor 
that can mix text with graphics; is a 
smart educational device (ages 4 to 
99) that indirectly teaches (LOGO 
style) concepts in arithmetic, 
geometry and computer science. 

All this power (and more) for only 
$12.95 (add $1.50 for postage and 
handling in U.S. or $2.50 outside U.S.). 
Check or money order in U.S. $. VISA 
or MC accepted. Satisfaction 
guaranteed or your money back. 

For TS1000/ZX81 with 16K RAM. 

KSOFT, 845 Wellner Rd., 
Naperville, IL 60540. 


rn rat nS ge eh E E ec eee E S S a ee el A iy 


Management Services Co. 
SYSDTA 
16K RAM. Cassette: $9.95 pp. 
Comprehensive 1K machine code input 
routine as on large commercial com- 
puters. Input from anywhere on the dis- 
play. Easy user interface through one 
string variable and GOSUB. Data types 
entered, validated, and displayed includ- 
ing strings, numerics, compacted numer- 
ics, dates, and verify prompt. 


Mindware Inc. 

From Eagle Sales 
Inventory Control 
16K RAM. Cassette: $22.95 plus s&h. 

2 programs. Stock I: Keeps track of 
400 line items, with product names and 
descriptions, unit prices, supplier codes, 
stock levels, and reorder points. Changes 
in prices, codes, and deletions easily done. 
Provides alphanumeric list of items or 
breakdown by type of supplier. Stock II: 
A simpler program that allows for 2000 
items. Updates on both programs take 
only seconds. By Hilderbray Ltd. 


Forecasting and Graphs 
16K RAM. Cassette: $22.95 plus s&h. 
Takes raw data, and projects sales, 
profits, inflation, and other trends. Com- 
putes a moving average that smooths out 
seasonal and random fluctuations. Stores 
up to 15 time series of 60 periods each. 
Analyzes growth rates, correlates 2 separ- 
ate trends, computes mean and standard 
deviation. Results can be displayed in 
graph form. 


The Fast One 
16K RAM. Cassette: $24.95 plus s&h. 

A computerized filing cabinet. Stores, 
keeps track of, and instantly retrieves all 
kinds of data, e.g., mailing lists, inven- 
tories, personal finances, recipes, collect- 
ables, club membership lists. Data records 
can be updated and searched quickly. 
Instructions; requires no special computer 
training. By Campbell Systems. 


Orbyte Software 
Home Inventory 
16K RAM. Cassette: $14.95. 

List all your household inventory. Main- 
tain up to date valuation of all assets. 
Useful for insurance purposes. Small busi- 
nesses can keep current summary of 
inventory. Ability to log categories, 
descriptions, inventory numbers, current 
and replacement costs, remarks. 


A Parsons 
Stockbook 
16K RAM. Cassette: $19.95. 

Written by experienced business user. 
Keep records of 400 lines of stock, quan- 
tities of up to 255 cost and selling prices 


May/June 1983 


of up to $655. Stock levels adjust as subs 
are entered, Prints stock tickets and full 
stock list. Plus supporting programs. 
Printer needed. 


Practical Computer Products 
Graphpak. 
16K RAM. Cassette: $14.95. 

Visually represents statistical data 
with line graphs, pie charts, vertical bar 
graphs, and area graphs. Printer 
compatible and fully listable. Useful for 
lab analysis and great for business and 
home statistics. 


R. A. Tec. 
Inventory (BIOIO) 
16K RAM. Cassette: $13. 

Keep track of your inventory; holds up 
to 300 items per tape. Each item includes: 
name, code number, quantity, and 2 ven- 
dors. Menu and INKEY$ driven. 


M. Sieder 
Inventory (16-106) 
16K RAM. Cassette: $15; listing: $2. 

30 identifiable items and numbers plus 
10 entries each, instant balance, inventory 
listings with total movement/item, trans- 
fer of balances and printout. 


M A Smith 

Business Stock Control Program 
Spectrum 48K. £19.50 pp. Sterling 
Money Order. 

Menu driven routines include initial 
stock set up, financial summary, 
MIN/MAX levels, update/add/delete 
facilities. Coding data schedule. 


Support Systems One 
ICP/1 
16K RAM. $15.95. 

Inventory Control, totally menu 
driven, auto run, nine pre-selected data 
fields in one file. Features: Auto file- 
search, file creation, file deletion, change 
data fields, interactive receive and ship- 
ment programs, item sales history to 
date; up to 200 files. 


Syber, Inc. 
Spectrex ' 
16K RAM. Cassette: $15.95. 

Creates true perspective drawings 
from user defined data points; viewing 
angles may be changed at will; data is 
entered only once and is maintained by 
resident file manager. 


SyncMaster 

Insurance Records 

16K RAM. Cassette: $14.95 + $1 s&h. 
Complete record-keeping of house- 

hold/business belongings. Keeps track 

of costs, dates purchased, descriptions, 

serial numbers, assessed values, etc. 

Combine with photos of small items for 

complete recovery in case of fire or bur- 

glary. Multi-tape capability if needed. 


Timeworks, Inc. 
Data Master. (1307). 
16K RAM. Cassette: $14.95. 

This general information storage and 
retrieval system makes index cards and 
messy files obsolete. Store information 
on such subjects as: Christmas card lists, 
recipes, club lists, client lists, vendor lists. 
For reference, information can be recall- 
ed by name, date, amounts, etc. 


The Insurance Property Record. (1303). 
16K RAM. Cassette: $14.95. 

Protect yourself against unnecessary 
property loss by organizing and cataloging 
your possessions. Information stored in- 
cludes item description, serial number, 
cost, purchase date, store where pur- 
chased, and location of item. Items can 
be recalled by any of these categories. 
Store up to 1000 items on a single C-60 
cassette. 


The Collector's Companion. (1302). 
16K RAM. Cassette: $14.95. 

Organize and catalog your collectibles 
by description (name, serial number, code 
number), cost, current value, insured 
amount, and purchase date. System auto- 
matically calculates appreciated value 
and tells you which items are under- 
insured. Retrieve by category. Store up 
to 1000 items on a single C-60 cassette. 


UAS 
Library. (C1001). 
16K RAM. Cassette: $6.95. 

Organize your books and magazine arti- 
cles by subject, location, author, title, and 
also have a key word or phrase search. 
You can choose the search that you want 
for each item. 


Thomas B. Woods 
ZX Data Finder 
16K RAM. Listing: $9.95. 

A high capacity information storage 
and retrieval tool. 2 ways to search, full 
edit control, documentation gives a line- 
by-line explanation of how the program 
works and analyzes functions necessary 
for good data base design. 


ZX Pro-File 
16K RAM. Cassette: $19.95. 

Machine language data base. Store up 
to 12000 characters in files of any length. 
Single or multi-word cross searches, 
extensive edit and display functions. 
Manual. 


Eric Yruegas 
Record Keeping 
2K RAM or more. Listing: $2; cassette: 
$5. SASE. 

Keeps track of items in home. Room 
for comments (serial numbers, location, 
etc: 


75 


Using, continued... 


ZX-Panding, Ltd. 
Data Storage and Display System 
16K RAM. $14.75 plus $1.25 s&h. 

Stores up to 60 data points in up to 25 
files under user-defined titles. Data can 
be recalled in either a tabular form or as 
a solid graph with a data summary table. 


Appointments 


CRC Software 
Bill Master 
16K RAM. Cassette: $12.95. 

Tells you with blinking calendar your 
financial timetable. Tracks paid and un- 
paid bills with subtotals and totals. 


Appointment Planner 
16K RAM. Cassette: $12.95. 

Keeps track of all your appointments. 
Lets you list out your appointments by 
day, month, or you can search for any 
appointment. Includes any year per- 
petual calendar. Dates on which you 
have any appointments blink. 


H & H Electronics 

Memo Board 

16K RAM. Cassette: $9.95 plus 75¢ 
s&h. 

This program may be used as a mes- 
sage center in your home or as a way to 
send messages to your friends with a 
ZX/TS computer. Easy to use program 
includes scrolling display and full 
editing functions. 


Heath Computer Services 
Appointment Calendar (SBG-568310). 
16K RAM. Cassette: $9.95. 

May be used for everything from 
reminding you of birthdays to business 
appointments. Enter the date and list up 
to (8) appointments per day for up to 
(31) days; change or delete any appoint- 
ment; prints a list of appointments for 
the day or month. 


Intercomputer Inc. 
Occasion Calendar (HM5004) 
16K RAM. Cassette: $14.95. 

Keep track of birthdays, anniversaries, 
meetings, and all other special events. 
Check ahead a day, week, or month at a 


time and not miss any occasion that might . 


otherwise have been forgotton. Record 
special notes, such as gift preferences, 
which will appear alongside each list. 


Bill Organizer (HM5001) 
16K RAM. Cassette: $14.95. 

Keeps track of all your bills, stores 
amounts and dates due, minimum pay- 
ments, and finance charges. Schedule 


76 


your payments by computer as it organi- 
zes your bills according to due dates. 
Summarizes and totals all bills from the 
same vendor and displays your annual 
costs, e.g., electric, at the end of the year. 
Tax deductible finance charges are also 
totalled. 


M. Sieder 
Tele Memo (16-201) 
16K RAM. Cassette: $15; listing: $2. 

15 memos of 500 bytes each, plus date, 
address, subject and signature for storage, 
telephone transmission and printout. 


Simulsion 
Appointment Calendar 
16K RAM. Cassette: $9.95. 

Keeps memos for any date this century. 
Produces a full screen calendar for any 
month with appointments highlighted. 
Type the appointment day, and the memo 
appears. Appointments can be easily 
added, updated, and cleared. 2nd pro- 
ram: Telephone Address and Mailing 
List: Recall entries by name or category 
(e.g., Christmas list, Bills). 


SyncMaster 

Yearly Datebook 

16K RAM. Cassette: $14.95 + $1 s&h. 
Keep track of important, long range 

dates with this easy to use program. En- 

ter dates for family birthdays, anniver- 

saries, insurance payments, etc. Add full 

descriptions. As each month begins, list 

by date, month, or year. 


Timeworks, Inc. 
Forget-Me-Not. (1306). 
16K RAM. Cassette: $14.95. 

Birthdays, anniversaries, and special 
occasions are important to remember, but 
sometimes forgotten. You can now have 
all noteworthy dates easily within reach 
with the push of a button. Dates can be 
sorted and recalled by classification. 
Record a dentist appointment, project 
deadline, or your boss’s birthday to be 
recalled daily, weekly, or monthly. 


Word Processing 


Aerco 
WP-1 Word processor package. 
16K RAM min. $15. 

Facilitates preparation of documents 
and handles any size printer. Provides 
blinking cursor, keyboard features, 
insert/delete, tab, etc. 


Barlog Software 
Texter 


16K RAM. Cassette: $7. 


This text editor allows you to store up 
to 400 lines of text ZX Printer compatible. 
The 16K version will handle 64K RAM 
(or whatever you have) with little modifi- 
cations. Instructions included. Listing: 
$2. 


Custom Electronics Device Corp. 
Word Processor 

Enter text line by line or a paragraph at 
a time. Edit function allows editing in any 
way on each line. Shift a line position one 
space at a time, left or right, center lines. 
Tab feature. Write for details. 


P. Hargrave 
Word Sinc 
16K or more RAM. Cassette: $12.50. 
A word processor for the Sinclair, or 
other 32 column, printer. Holds 9,000 
characters with 16K. Easily expanded 
for larger memories. Menu controlled. 
Full screen cursor control for changes 
and corrections. Fast machine code 
routines to insert variables, move, list, 
and justify the text. Instructions. 


Kopak Creations, Inc. 

Wordfix 

16K RAM. Cassette: $19.95. 
A word processing program. 


Management Services Co. 
SYSDOC 
16-64K RAM. Cassette: $9.95 pp. 

Word processor. A full function text 
editor featuring: totally menu driven 
selector; user defined file size; over 11,000 
characters for text on 16K; edit, move, 
and delete text; positionable tabs for text 
alignment; continuously updated text dis- 
play; comprehensive documentation. 


Maranatha 
Text Processor 

Fast mode operation for quickness. 
WRITE, EDIT, DISPLAY, SAVE or 
LPRINT your text. Specify 16, 32, 48, or 
64K RAM. 


Mindware Inc. 

From Eagle Sales 
Z-Text 
16K RAM. Cassette: $19.95 plus s&h. 

A word processing program to edit your 
written text. Justifies margins, allows revi- 
sion and replacement of any part of the 
text; excellent for form letters. Displays 
up to 32 characters per line and 22 lines 
of text and will move text up and down 
rapidly. Sets up page formats and searches 
for key words. 


Peak 
Text & Prodir 
16K RAM. Cassette: $10. 

Edit and save pages of letters, address 
books, etc. with Text. Recall pages with- 
out splitting words at the end of a line. 


SYNC Magazine 


Text can be used with your printer. 
PRODIR is a programmed directory to 
Organize your programs and ease 
loading. 


Textii 
16K RAM. Cassette: $20. 

Edit and save pages of any text with- 
out splitting words. Has an adjustable 
number of characters per line to 
accomodate any printer. Includes 
PRODIR to organize programs and ease 
loading, a search to locate words and a 
line renumbering routine for easy 
insertions. 


Soft Way 
Text Tape 2 
16K RAM. Cassette: $10.95. 

BOOK: _ Edit-Tab/Transfer/Review/ 
LPrint/Save. 20 pages. LIST: Edit/Save/ 
Search/Review. 2500 items. A-Z: Alpha- 
Numeric Sort with Save. 

SyncMaster 
Vu-Write Text Editor 
16K RAM. Cassette: $14.95 + $1 s&h. 

Easily document spreadsheets and 
other programs with full insert, delete, 
move, and print text. Completely menu- 
driven, 11K free RAM for documents. 
Define file size, set tabs and start writ- 
ing. Complete documentation on 
cassette. 


Miscellaneous Programs 


American Micro Products, Inc. 
Home Brewing 
16K RAM. Cassette: $17.95. 

Teaches the user to brew beer at home. 
Instruction includes: equipment, pro- 
cedures, ingredients, and recipes. The 
program takes the user from preparing 
the wort to the final racking of the beer in 
a stepwise and logical progressing. 


Apropos Technology 

Dr. Floyd 

16K RAM. Cassette: $10. pp. 
Psychoanalysis by Computer? Well 

not quite, but Dr. Floyd will carry on a 

conversation with you using psycho- 

analytic techniques, giving the appear- 

ance of artificial intelligence. 


Banta Software 
Beam Design 
16K RAM. Cassette: $19.95. 

Calculates shear force and moment di- 
agrams for statistically determinent 
beams with concentrated and uniform 
loads; finds normal and shear stresses 
for given section or section modulus for 
a given section. 


Pipe Flow 
16K RAM. Cassette: $19.95. 
Calculates the Reynolds number and 


friction factor for a given flow condition 
and finds the head loss in piping systems 
which include straight pipe, bends, 
valves, contractions, and enlargements. 


Home Heating Costs 
16K RAM. Cassette: $6.95. 

An analysis of effects of types and 
amount of insulation, building size and 
configuration, climate, and various fuel 
costs. See what you really can save by 
using alternative fuels for all or part of 
your building. 


Computer-Wear Software 
Demo 
16K RAM. Cassette. 

A software package for all Timex/ 
Sinclair 1000 Retailers, distributors, and 
marketing managers. Demo is not for 
retail sale but was designed specifically to 
help sell more merchandise for you. Your 
TS1000 with 16K RAM can now be your 
best salesperson. Contact us for free 
details, prices, quantity discounts. 


Verlin K. Cross 
10 Programs for the ZX81 
Food Programs: $5 each; all others: $3 
each. 

Examples of input/output and instruct- 
ions. 6 on statistics: Student, Paired 
Observations, Correlation, Linear Regres- 


aDuruture 


game! 


LOST 
CONCINENG 
only $14.95 


CALL (313) 565-3586 


en at GE GS 6 om ow = ow oe os @ os a = = 


CHARGE TO: 


f A00ress 
§ ary: 


ORDER FORM 


BMS 


Sinclair 


fOcheck or money order $14.95 
i Payableto BMS 


TIPS: £0.80% 4073, DEARBORN, MI 48126_ J 


ZX-81 


(16k RAM) 


Please rush me: 


add —- 
saes (|__| 8 
tax 

sHippinc 150 l 
DPen TOTAL ____ | 


STATE: 


Using, continued... 


Regression, Analysis of Variance, and Chi 
Squared. 4 on Fish Hatchery Manage- 
ment: 2 on Fish Food Order and Daily 
Feed Programs (one for rainbow trout; 
one for cutthroat trout), Fish Hatchery 
Records; Flow and Density Index 
Calculations. 


Evansoft Associates 

Runners’ Programs: 

Pace and Splits Calculator. (R10). 
Runner's Log. (R20). 

First Marathon Training Planner. (R35). 
16K RAM. Cassette: $7.95 each; 2K RAM 
versions: $5.95 each. 


Executive Workshop 
The Ultimate Forecast 
16K RAM $4.95. 

Forecast your personal or business fu- 
ture with Tarot Cards, shuffled and 
dealt by your computer. Shows the po- 
sition and significance of each card, 
name of the card, and if the card is 
reversed. 


Pro Football Forecast 
16K RAM. $4.95. 

Measures each team on 16 points 
including, coaching, weather, injuries, 
etc. Lists selected winner and expected 
point spread. Successfully picked all 
NFL playoff games this year within 2 
points—but totally missed the Super 
Bowl. *Free with purchase of any 3 
other programs. 


Gladstone 
Program of Days (Z45) 
16K RAM. Cassette: $11.95. 

A historical databank. Organized to 
provide insight and information regarding 
historical events. Find out what famous 
persons and events occurred on your 
birthday. 


Project Scheduler and Proposal Sheet 
(Z50) 
16K RAM. Cassette: $14.95. 

Project Scheduler: Record project est. 
hrs., hrs. to date, remaining hrs., billing 
rate, employees involved; display amount 
billed, current billing, estimated billing 
remaining. Proposal Sheet: Record work 
items and hours; hourly billing rates; dis- 
play overheads, material costs, labor 
totals. 


Signals and Morse Codes (Z57) 
16K RAM. Cassette: $14.95. 

Learn and practice Semaphore, Blinker 
Lights, and Morse Code (including 
sound). For each code you can see or 
hear the numbers and alphabet in order 


78 


or any number or letter you choose. You 
can receive random letters or numbers 
and messages and be tested on any of the 
codes. Use the messages and tests in the 
program or insert your own. 


Weight Control Diet Program (Z47) 
16K RAM. Cassette: $29.95. 

Helps gain control over eating program; 
not a diet, but an individually tailored, 
systematic weight loss program. Uses a 
Personal Status Assessment with the com- 
puter as your monitor and feedback sys- 
tem. Track yourself against your model. 
Weight Control Guide Book gives in- 
structions. Personal data tape for moni- 
toring progress is supplied. 


Just Drop in Software 

Program tapes 

2K RAM. Cassettes: $14.95 pp. each. 
Specializes in software for the TS1000 

without additional memory. Tapes with 

programs duplicated on side two; mini- 

mum of 5 different programs per tape. 

Titles include: Address Book, Bank, Anti- 

Ballistic Missile, Blackjack, Slot Machine, 

Hangman, Lunar Lander, and more. 


Wm. Maples 
Stopwatch 
1K RAM. Listing: $1.50 pp. 
Times events to 9 1/2 minutes in length; 
accurate to 1/10 sec. 


ABC, Etcetera 

2K RAM min. Listing: $1.59 pp. 
Alphabetizes lists of names, titles, 

terms, etc. 20 characters long. Length of 

list: 65 for 2K RAM, add 50 for each 

additional K. 700 maximum. 


Mindware Inc. 
From Eagle Sales 
Critical Path 
16K RAM. Cassette: $19.95 plus s&h. 
Picks out the steps in a project that 
could become bottlenecks, monitors 
costs, spots effects of delays. Some steps 
must be completed before the next can 
begin; others can be delayed without 
slowing up the project as a whole. Appli- 
cations include construction, manufac- 
turing, marketing, public administration, 
and many other. By Hilderbray Ltd. 


Orbyte Software 
Running 
16K RAM. Cassette: $18.95. 

A computerized guide to running. Com- 
putes all information necessary for a per- 
sonalized, well-rounded running schedule. 
Advice on diets, exercises, equipment. 
Helps solve problems common to the 
sport, keep a “running log” of your pro- 
gress, stabilize the level you have already 
attained, and coach you in building to 
higher levels, even to marathon status. 


P&B Software 

Espanol 

16K RAM. Cassette: $9.95. 
English-Spanish and Spanish-English 

bilingual dictionary. In addition to basic 

vocabulary, Espanol learns new words 

and phrases from the user and adds 

them to its own vocabulary. 


Robill Products 

Cypher 9 

16K RAM. Cassette: $29.95 + $1.50 
s&h. 

Cypher 9 is a menu-driven, multi- 
featured cipher generator with 
encode/decode/scramble and two save 
options for secure communications. Fre- 
quency analysis is inhibited and conve- 
nient cipher changing allows security 
comparable to “‘one-time pads.” 


Simulsion 
Party Nibbles and Bites 
16K RAM. Cassette: $9.95. 

Peggy DeRose offers 12 easy, ultra-fast 
party recipes. Select a letter from the 
menu and a recipe instantly appears. 
Includes: bean, cheese, and salmon dips; 
a cheese ball; pigs-in-a-blanket; and more. 
Room to add your own variations and 
favorites. 


Bartender’s Window 
16K RAM. Cassette: $9.95. 

A menu of drinks appears on the 
screen, offering an instant recipe mixing 
guide. Press the call-letter of any drink 
and its mixing directions immediately 
appear. Designed to overcome the pro- 
blem of mixing drinks in dark places and 
to provide a stimulating answer to the 
question: Why is that computer sitting at 
the end of the bar? Program by Sean La 
Motte. 


UAS 
Job Jar. (C1012). 
16K RAM. Cassette: $6.95. 

Let your computer keep tabs on your 
odd jobs. Input the time you have avail- 
able and the program will select a job for 
you to do. You can add or delete jobs 
from your own personal job jar. 


Utilities Engineering 
Steel Beam Design 
16K RAM. Cassette: $29. 

Calculates and displays the required 
Steel Beam (W-Section) based on input 
of Span, Load and Loading type. 


Timber Beam Design 
16K RAM. Cassette: $29. 

Program calculates the Section 
Modulus and chooses timber beam to 
comply, then checks the Horizontal Shear 
of the selected Beam and revises if neces- 


sary. 
SYNC Magazine 


Air Conditioning requirements of various 
types 

16K RAM. Cassette: $29. 

Program has data on 32 types of Buildings 
and calculates the Air Conditioning for 
input of Square Feet of Floor Area. 


Bob Woish 

Push Processing 

2K RAM. Cassette: $3.95; listing: $2.95. 
Use any black and white film at any 

A.S.A. rating. Simply enter manu- 

facturer’s A.S.A. number and the A.S.A. 

used for exposure, and the computer out- 

puts development information. 


Zeta Software 
Plane Frame 
16K RAM. Cassette: $37.45. 

An excellent tool for the professional 
engineer or an example of state-of-the-art 
matrix structural analysis for students. A 
typical database can contain 12 joints, 14 
Spans, and 7 sections. 


Ham Radio Pak 
16K RAM. Cassette: $24.45. 

Special package which includes: 1) 
POLSAT: Calculates minute-by-minute 
aim-angles for polar orbiting comsats. 2) 
GEOSAT: Calculates the aim-angle to 
any of the geostationary comsats. 3) 
DISH: Calculates the plotting points for 
custom radio dishes. 


Z-Games 
Hamware 
IK RAM: $2. 

5 programs for ham radio operators. 
Covering circuit design AC and DC, Im- 
pudence, Frequency, and Antenna 
design. 


ZX-Panding, Ltd. 
Clocks and Timers 
16K RAM. $3.75 plus $1.25 s&h. 

Three separate programs in a menu- 
driven format: 1) Digital clock constantly 
displaying the time. 2) Count-up timer 
allowing the user to set the starting time, 
and 3) count-down timer with a moving 
visual display after time lapses. Displays 
military or conventional time. 


Your Special Day 
1K RAM. $3.75 plus $1.25 s&h. 

Good example of using successive 
equations to answer a practical question. 
Enter any date in history and the ZX will 
tell you which day of the week it occurred 
on. 


Anypoint Plotter 
1K RAM. $3.75 plus $1.25 s&h. 
Crunches any data to allow the best 
possible graph by readjusting the vertical 
coordinate to each set of data. A data 
summary will then follow including lowest 
and highest data points, data sum, and 
data mean. 


May/June 1983 


The Economy Trio 
1K RAM. $8.75 plus $1.25 s&h. 

3 programs available on separate cas- 
settes combined onto one cassette: Clocks 
and Timers, Your Special Day, and Any- 
point Plotter. 


Program Collections 


Computer-Wear Software 

2 Program Advertising Package 

16K RAM. Cassette: $25.95 plus $1.50 
s&h. 

Run your next direct mail/space adver- 
tising campaign like Fortune 500 com- 
panies with this professional kit. Designed 
by an Advertising Director, these pro- 
grams take the guesswork out of produc- 
tion, lists and mailing costs, quotas, risk 
summaries, P & L DATA BASES, adver- 
tising planning, evaluation and analysis. 


Custom Electronics Device Corp. 
5 Business Programs V.1.0. 

Programs include: Business Forecast- 
ing: Uses moving average method. Ratio 
Analysis: Uses current ratio, net profit to 
sales, investment turnover, earnings on 
interest, inventory turnover. Break Even 
Analysis: Uses break down of costs. Try 
Before You Buy: Calculates monthly cost 


eee ZX8| 0o 0o 
e TIMEX/SINCLAIR 1000 e 
SOFTWARE 


e ENTERTAINMENT e 
e EDUCATIONAL e 


e FINANCIAL PLANNING e 
Send SASE for FREE Catalog 


E100 Statehood Quiz 16K $12.95 


E200 Word Quiz Vol. 1 16K $7.95 


E300 Hangman Vol. 1 16K $7.95 


F100 Home Budget 16K $12.95 


F101 Auto Record Keeper 16K $15.95 


G102 Darts - Mastermind 2K $4.95 


G103 Deep Space 16K $5.95 


G104 Football 16K $9.95 


G105 Slots - Roulette 16K $9.95 


All Prices Quoted in U.S. Dollars 
Arizona Residents Add 5% Tax. 
Shipping: $1.50 in U.S., $3.00 in U.K. 


Send Check or Money Order to: 
SOFTWARE DEVELOPMENT ASSOC. 
3328 W. Las Palmaritas, Dept. Y1 
Phoenix, AZ 85021 


2X81 Trademark Sinclair Research 
Timex/Sinclair 1000 Trademark Timex 


79 


Using, continued... 


of owning a given item, including interest, 
upkeep, personal property tax, and other 
expected expenses. 


D.S.B.C. 
Programs for. the Basic (2K) 
ZX81/TS1000 | 


2K RAM. Cassette: $6.95. | 

9 programs designed to show what the 
basic computer can do. 5 moving 
graphic games, 4 practical programs. By 
listing to screen, shows many useful 
applications of the Basic language. A 
help for novice programmers. 


Gladstone 
Business Pac 1 (Z49) 
16K RAM. Cassette: $29.95. 

2 tapes with an instruction/applications 
manual and these programs: 1) Break 
Even Analysis. 2) Cash Flow Analysis. 3) 
Payback Analysis. 4) Internal Rate of 
Return. 5) Depreciation Analysis. 


Lamo-Lem Laboratories 
ZX81 Home Computer Package 
1K RAM. Cassette: $9.95. 

Four programs: Billboard: Scrolls a 
giant banner across the screen. Etch-a- 
Screen: Draws text & graphics in any 
direction. Checkbook Balancer: Keeps a 
running tabulation of your balance. Com- 
poser: Plays music as you press the keys. 
Manual, 2 keyboard overlays in color. 


ZX80 Business Package 
4K ROM; 1K RAM. Cassette: $9.95. 
Three programs: Search and Save: 
Stores and retrieves keyed files on tape. 
VideoComp4: Manipulates 3 columns of 
16 elements; performs integer operations 
on one element or an entire column. 
VideoGraph: Produces a bar graph from 
the VideoComp4 results. Manual, two 
reference cards, file record sheet, and 
color keyboard overlay. 


ZX80 Home Computer Package 
4K ROM; 1K RAM. Cassette: $9.95. 
Package of 5 1K programs. Etch-a- 
Screen: Draws text and graphics. Calcu- 
lator: Multiplies or divides to ten decimal 
places. Checkbook Balancer: Keeps a 
running tabulation of your account. Elec- 
tronic Billboard: Bounces a message of 
giant letters across the screen. Music 
Composer: Plays back over a nearby 
radio; notes entered on keyboard. 
Includes keyboard overlays in color and 
more. 


Orbyte Software 
Execu-Soft 
16K RAM. Cassettes: $128. 

7 programs for the small business: Cus- 
tomer Credit File; General Ledger; 
Execu-Diary; Execu-Address and Phone 
File; Accounts Payable; Accounts Receiv- 
able; Inventory. 


80 


R. Panwar 

Program 1: ADDR 

16K RAM. Cassette: $19.95. 
Multipurpose program for home and 

small business use. Stores and retrieves 

information by user defined codes. Stores 

125 entries. Provides 3 fields of 1, 6, 84 

character length; allows search by 1 or 6 

characters. Used for lists of names, 

addresses, phone numbers. 


Program 2: ACCR 
16K RAM. Cassette: $19.95. 

Similar to Program 1, but has 4 fields of 
1, 6, 20, and 13 characters (for amount). 
215 entries. Search 3 ways. Total for 
amount column. Many uses. 


Simplex Software 
Home Pac 
16K RAM. Cassette: $19.95 Visa/MC. 
20 programs inclding: Biorhythms, 
Comp-U-Sketch, Invader, Micro-Organ 
(music), Statistics, Regression, Check- 
book Balancer, NPV, CAI, Kaleido- 
screen, Animals, Renumber, Machine 
Language Monitor, Arithmetic Drills, and 
more. 21 page manual. Price above is for 
limited introductory offer. 


Timeworks, Inc. 
5-2K Family Pak. (1308). 
16K RAM. Cassette: $14.95. 

Five programs for day to day tasks: 
Memoboard: Serves as family message 
center. Checkbook Balancer: Simplifies 
reconciling your check book. Recipe Re- 
corder: Stores up to 60 recipes on a C-60 
cassette for easy recall at any time. Mini 
Money Manager: Helps you plan and 
track your household budget. Homework 
Helper: Turns your computer into a tool 
for math or science homework. 


Taxes 


Computer-Wear Software 

1982 or 83 N.Y. State Tax 

16K RAM. Cassette: $11.95 plus $1.50 
s&h. 

Fully-automatic/completely reliable 
program does N.Y. State/City taxes in 
minutes. Includes tax tables; all mathe- 
matical computations are done by your 
computer. Works for every filing status. 
Contains integral Standard Deduction 
routines. Pre-order next year’s on 11/83. 


1983 Federal Tax Forms 
16K RAM. Cassette: $11.95 plus $1.50 
s&h. 

Fully-automatic/completely reliable 
program does Federal Income Tax Forms. 
All mathematical computations are done 
by your computer. Works for every filing 
status. Contains several schedule forms. 
Information and pre-ordering next year’s 
after 11/83. 


Ksoft 
Tax Return Helper. 1982 ed. 


16K RAM. Cassette: $14. 


Set of 7 programs for Form 1040 and 
Schedules A, B, C, C1/C2, D, and E. 
Data is interactively entered/examined/ 
modified and the results can be seen 
immediately. Performs all computations 
and even detects some errors. As in an 
electronic spread sheet, changes update 
all lines affected. Forms can be printed 
and/or saved on tape. Cost is deductible. 
($7 for buyers of the 1981 edition.) 


Orbyte Software 
Income Taxes 
16K RAM. Cassette: $16.95. 

Income taxes contains all information 
necessary to guide you through the IRS 
forms. Step-by-step instructions. Does the 
mathematical calculations. Continuous 
updates allow the program to be used 
year after year. 


Software Lab East 
The Tax Helper Series 
16K RAM. 

The tax helper series uses artificial 
intelligence to assist the user to prepare 
common personal and small business tax 
forms. The programs ask the user ques- 
tions and tell which amounts should be 
placed on each line of the tax form. 


Thomas B. Woods 
Sort 
1K RAM. Listing: $3. 

ZX/TS collating tool. Count and file 
1000s of items in up to 29 categories with 
just 1K RAM. Listing and text provides 
an indepth review of Basic programming 
techniques. An instructional aid to begin- 
ning computerists as well as a useful home 
and office tool. 


Address and Phone Lists 


American Micro Products, Inc. 
Address Book 
16K RAM. Cassette: $17.95. 

Allows the user tp create a database of 
up to fifty names, addresses, and tele- 
phone numbers. Search the database 
using names, telephone numbers, and zip 
codes as the search criteria. 


Basco 
Address File/Mailing List 
16K RAM. Cassette: $10. 

Menu driven program allows name, 
address, and 2 lines of misc. informa- 
tion. The file can be searched using any 
piece of known information. Name and 
address only can be sent to ZX printer 


SYNC Magazine 


KROK Better than Pac-Man. Split screen, split- 


second timing, action adventure. Left portion of screen 
shows your progress through a complex maze, pur- 
sued by relentless crocodiles; upper right portion 
shows details in each room. Encounters with graphic 
spiders, snakes, bats, monkeys. Find treasure, coins, 
keys, ring, code. Engage in kill-or-be-killed struggles. 
Open locked cellar door for more hazardous subterra- 
nean adventure. 16K. $8.95/2K. $6.95. 

EE RA I T EEE RES a a a TD 


STAR SEARCH Graphic space saga among the stars. Shoot down flying 
saucers, explore unknown worlds, locate and solve mystery of deserted ghost ship. 
Reach for the stars in a world of dazzling space created by inverted graphics. Move with 
machine language speed. Fast action saucer shoots require precise timing. 16K. 
$8.95. 


NOAH’S ARK uttimate nonviolent computer hide-and-seek game. Help Noah 
find 52 animals hiding in more than 7000 bytes (10 full screens) of continuous 
graphics. Different every time. Highlights include flowing river, ‘intelligent’ animals, 
race against the coming flood. Great for children, adults. 16K. $8.95. : 


CRYPTO-WHAMMER Use this program to solve cryptograms, break codes. 
Displays original code at top of screen, changes as code is broken below. 16K. 
$6.95/2K. $5.95. 


CROSSWORD-PUZZLER End erasures, smudges. Display and solve 
crossword puzzles on your TV screen. Easy to use. 16K. $6.95/2K. $5.95. 


POINT-SPREADER 83 the best — available July 1 in time for NFL’83. More 


than 20 years NFL experience packed into this point-spread computing program. Fac- 
tors in injuries, weather, field, rivalries. Updated after every game. 16K. $9.95. 


CROSS-REFERENCER stay on top of libraries, magazines, record collec- 


tions. Cross-reference material by subject(s), title, date, author/artist, etc. Splits to 
create multiple programs as material grows. 16K. $7.95. 


Orders to: Brown Cottage, 5486 Bright Hawk, Columbia, Md. 21045 
Check or money order, please. 


YOU NEED A FULL—-SIZED KEYBOARD, 
BUT WHY PAY MORE? 


This a new, FULL-STROKE, 53 KEY, surplus, GOLD-CONTACT keyboard, 
originally made for a Texas Instruments computer § terminal.Comes 
with 6 inch space bar, 2 oversized shift keys, an oversized 
return (enter) key and 12 spare keys which can be used for the 
special circuits described below. An optional parts kit is 


available with all the electronic parts required. (IC’s with 
sockets, resistors, capacitors, LEDs, etc.) You provide only, 
wire solder and a small piece of perf-board for assembly. 


The keyboard comes FULLY ASSEMBLED and ready to connect to your 
computer via a 13 conductor ribbon cable (supplied). The 
expansion connector is left free for your use with printer, RAM, 
or other devices. 

The keyboard comes with full plans for the following circuits: 


TR = K 

> T Once activated this circuit 
will allow you to continuously input any key just by holding it 
down. Includes variable speed control. 
AUTO-SHIFT FO T F T10 You decide which shifted 
functions (like $ = + coppa delete etc.) you will place on 
dedicated keys, to be used WITHOUT SHIFTING. The parts kit 
contains enough parts to dedicate 10 keys. 


o COMPLETELY ASSEMBLED KEYBOARD & CIRCUIT PLANS 
—Shipping/handling/insurance - add the following: 


3 » QTHER FOREIGN-$12 
Texas residents please add $2.53, state sales tax. 


FOR PARTS KIT ADD $13 & AN ADDITIONAL $1 FOR POSTAGE 
6 ~I Texas residents please add %$.72, state sales tax. 


INCLUDE MAILING LABEL FROM COVER 
AND DE DUCT %3 


PAURE H ELECTRONICS 


H 195 LELANI 
a SAN ANTONIO, TX 78242 


f Announcing a New Explorer’s Tool For 


SINCLAIR ENTHUSIASTS 


Unlock the Secrets of the Sinclair Memory 
Write Directly into Memory as if it were paper 


: a dynamic memory 
with Memory Scope manipulating program 
PICTURE THIS 


Enter a starting address and Flash the screen is filled with that 
section of memory in character form. Press ‘‘C’’ and an interactive 
cursor flashes over the first memory location on the screen causing 
its contents to appear in the upper margin of the screen in hex- 
idecimal, binary, and decimal. Drive the cursor anywhere on the 
screen with the arrow keys. 


Distributor/retailer inquiries welcome 


AGOBBLERS 


PUCKMAN FOR 16K ZX81 


BEAT THAT HIGH SCORE! 
GOBBLE THOSE DOTS 
BEFORE THOSE MEANIES 
GOBBLE YOU! YOUR ONLY 
AIDES ARE FOUR “POWER 
PILLS” WHICH MAKE THE 
MEANIES EDIBLE. BUT 
NOT FOR LONG! 

@ MACHINE CODED FOR FAST ACTION 

@ EXTRA "GOBBLER” FOR 10,000 POINTS 

@ON SCREEN SCORING 

@ HIGH SCORE WITH “ENTER NAME” FACILITY 
@UP TO 4 PLAYERS 


AN ANNOYINGLY FRUSTRATING GAME IFOR ONLY $14.95 


aR STEROIDS" 


STAY ALIVE AS LONG AS POSSIBLE IN OPEN SPACE FILLED WITH FLYING ROCKS. 
SCORE BY SHOOTING THEM — WHICH ALSO CAUSES THEM TO BREAK INTO LOTS 
OF LITTLE BITS AND MAKES LIFE EVEN WORSE! 


Only U.S. DOLLARS CAN BE ACCEPTED. 
MONEY ORDERS PREFERRED. PERSONAL 
CHECKS MUST CLEAR BEFORE SHIPMENT. 


Now press “W” and the cursor becomes a writing cursor 
allowing you to write directly into memory in either hex, decimal or 
character form. 

Press ‘‘C’’ again to exit cursor mode and you are free again to 
move your memory scope using the 4 arrow keys to rapidly sweep 
your view anywhere in memory. 


Program Uses: 
e Entering and Revising Machine Code 
e Explore the Sinclair ROM 
e Run simultaneously with another program to witness the 
internal operation of your computer 
Type text directly into memory, scroll to read anywhere, or 
save on tape 


For ZX81/TS1000 with 16K 
Introductory Price $6.95 add $1.50 for shipping 
BONNIE & CLYDE SOFTWARE 


P.O. Box 13651 
Albany, N.Y. 12212 


g Super Scramble @ MACHINE CODED FOR ARCADE VERSION 
Fantastic, exciting game FAST ACTION @ ROTATE LEFT/ROTATE 
®@ ON SCREEN SCORING RIGHT/THRUST 
make your way through 


@ HIGH SCORE WITH 
Stalimite, stalitites, ‘ENTER NAME’ FACILITY o ote eet. 8 
e coe rg @uP TO 4 PLAYERS @ INCREASING NUMBER 
Similar to Froger @EXTRA SHIP FOR 1,000 PTS OF ASTEROIOS 
(NOT AS EASY AS IT @ THREE ASTEROID SIZES 
$14.95 ea SOUNDS!) @'NASTY’ ALIEN SPACE- 
@ SHIP MOVES JUST LIKE SHIP (FIRES BACK!) 


THIS GAME IS JUST AS BAD!- AND ONLY $14.95 
AN OFFER FOR REAL MASOCHISTS-BOTH TAPES FOR $24.95 
MAIL ORDER ONLY-PLEASE MAKE CHEQUE/PO PAYABLE TO 


§, THE SOFTWARE FARM DEPT C L7 
IE craico FARM, PPENCL. BAY, TINTERN, GWENT / 
NGLAND j 


SI gS AERP a IR a RD I DN RT Rh E TE a pm rn ee a nD O Ae Me Fs TF 


Using, continued... 


and can be used to address envelopes. 
Ideal for home, clubs and small business 
mailings, telephone lists, Christmas 
cards, Customer lists, etc. 


CRC Software 
Little Black Book 
16K RAM. Cassette: $9.95. 

This program is the electronic name, 
address, and phone number software 
that turns your computer into a mailing 
list or instant name, address, and phone 
number retrieval system. Saves data on 
tape for permanent use. 


Executive Workshop 
Customer/Supplier File 
16K RAM. $4.95. 

Keeps track of 100 customers or 


suppliers, their phone numbers and two 
18 character product code (or other) list- 
ings. Includes add or delete function; 
change phone number or product code 
listing. 


H & H Electronics 

Universal Address List 

16K RAM. Cassette: $10.95 plus $1.25. 
Menu driven, program includes loca- 

tions for name, address, telephone, and 

an extra line for comments. Includes 

complete editing functions; before, and 

after entry. Some uses include: Xmas 

card list, telephone number of files. 


Heath Computer Services 
Mailing List. (SBG-56838). 
16K RAM. Cassette: $9.95. 
Holds up to 100 names, addresses, 


and telephone numbers; search by name, 
city, zip code, or phone number to find 
any address or phone number; sorts by 
name, city, or zip code in alphabetical or 
numerical order; lists names, changes or 
deletes; prints list of names or names 
and addresses or labels. 


Mailing List. (SBG-56839). 
64K RAM. Cassette: $9.95. 

Holds up to 500 names, addresses, 
and telephone numbers; search by name, 
city, zip code, or phone number to find 
any address or phone number, sorts by 
name, city, or zip code in alphabetical or 
numerical order: lists names, changes or 
deletes, prints list of names or names 
and addresses or labels. 


Continued on page 120. 


STABILIZER PAD FOR THE ZX 80, 81 and TS 1000 


e ELIMINATES SLIDING 
ACCURATE TYPING 
& LOSS OF PROGRAM 


CASSETTE HOLDER 
e 2 YEAR WARRANTY 


e ELEVATES AND TILTS KEYBOARD FOR LESS FATIGUING, MORE 
e PROVIDES NEEDED GRIP FOR 16K MODULE; PREVENTS GIGGLING 


e NEATENS WORK AREA WITH BOTTOM CAVITY FOR MANUAL, AND A 


THIS IS A HIGH QUALITY DURABLE ELASTOMERIC PAD 
$7.49 ea + $1. handling and Postage. SEND CHECK & ORDER TO: 
ZOPF INDUSTRIES 121 W. Mt. Hope, Lansing, MI. 48910 


EXPRESS YOURSELF 


Let your imagination soar. 

Think charts. Graphs. 
Shapes. 

Use originality and creativity 
in programs that entertain. Edu- 
cate. Organize. Analyze. And 
programs that get down to 
business. 

Maybe you'd like to write 
software like that. Maybe you 
already have. If not, then Sinc- 
Basic could be your gateway to 
a new world of expression. Of 
excitement. And maybe even a 
new world of financial re- 
sources. 

Let SincBasic guide you, 


82 


(WITH SINCLAIR BASIC) 


step by step, through such 
BASIC commands as GOTO 
and PRINT to the most sophisti- 
cated programming techniques 
used by the professionals. 
The course comes on three 
computer quality cassettes and 


includes users manual and 
training guide. 
*SincBasic 

Introduction Part 1........ $9.95 
#SincBasic 

Introduction Part 2........ $9.95 
#SincBasic 

Advanced Part 3.......... $9.95 

*Complete course only 

$24.95 


#Available JULY, 1983 
Indicate 1K or 16K 


And, if you’ve already written a 
program that you think is ‘“‘Pic- 
ture Perfect” and are interested 
in licensing it, we may be inter- 
-ested in publishing it. So contact 
us for details on how to submit 
your finished program. 


For complete program listing, 


write: 
SOURCEWARE, INC. 


P.O. Box 1579, Dept. SI-1 
Vernal, Utah 84078 


SYNC Magazine 


NEED HELP BUYING. ,.pheris ior games- or practically anything that 
A CO M PUTER uses microcomputer technology —you need help. 


There are just too many products on the market 
OR PERIPHERAL? ie Geaive Computing 1983 Buyers Guide 


to Personal Computers, Peripherals and Electronic 
Games contains all the help you'll need to shop 
wisely. Its honest evaluations are written by 
experts—the experts of Creative Computing. 


In the Buyer’s Guide you'll find: 
m How to select the computer for you 


@ Evaluations of specific personal 
computers 


m Tips on buying peripherals of all kinds 

m Reviews of peripherals 

m Music synthesis equipment 

= Comprehensive evaluation of joysticks, 
paddles and game port extenders 
Video game systems and software 
Roundup of electronic toys and games 


Video products for computer users 


Selected microprocessor-based consumer 
electronics products. 


As you can see, the Buyer's Guide is an 
incredibly comprehensive directory to the latest 
in computer technology. Use the coupon below 
to order your copy today! 


a 
z 
m Electronic and computerized learning aids 
R 
ži 


ORDER YOUR 


eee COPY TODAY! 


Creative Computing 
Buyer’s Guide to Personal Computers 
P.O. Box 640, Holmes, PA 19043 


g Please send me the Creative Computing 1983 Buyer's 

Y Ẹ & ° Guide to Personal Computers, Peripherals and Electronic 
Games. | enclose $5.00 ($3.95* plus $1.05 postage and 
handling). Price outside U.S.A. $6.00. 


Mr./Mrs./Ms. 
(please print full name) 
City 


Zip 


*NJ residents add 5% sales tax. 


Please make check payable to 
Creative Computing Buyer's Guide. 


| 
| 
i Address niir ake Aii ea d E Sa Le i 
i eee 
i 
i 
i 
| 
| 
Í 
| 
| 


JUST T = 
o Tihe as 


Enjoying Your Computer: Games 


General Games 


Amanda Systems 

Simulator Program 

16K RAM. Cassette: $12.95. 
Instrument flight simulator program. 

VOR-DME-ADF. Map display. Multi- 

leg with ILS approach. 


American Micro Products, Inc. 
Island Kingdom 
16K RAM. Cassette: $17.95. 

You are set on a small island kingdom 
as a ruler of a hungry group of peasants. 
You must contend with untrustworthy 
neighbors, crop failures, industrialization, 
education, pollution, and an occasional 
tidal wave. 


Andy Longacre, Jr. 
Maxwell’s Demon 
2K RAM. Cassette: $5. 

A video action game in which you 
work against the clock in trying to trap 
up to 24 bouncing balls (depending upon 
the level of difficulty selected) in one 
half of the playing court. Demonstrates 
certain statistical and thermodynamic 
principles; offers arcade-like challenges. 


Apropos Technology 
Wordplay 
16K RAM. Cassette: $10 pp. 

Five language oriented programs. Jar- 
gon: A jargon generator; story writes 
personal stories using player input. Ani- 
mal: The popular animal guessing game. 
Haiku: writes a form of Japanese poetry. 
Secret: A cipher/decipher program 
which allows messages to be hidden us- 
ing keywords. All programs have user 
configurable menus. 


Atto-Soft 
ZX-Man 
16K RAM. Cassette: $14.95. 

Turn your TS1000 into an arcade game 
machine to play one of the classic games 
of the decade. All in machine code. Add 
Atto-Soft’s joystick and the fun begins. 


Banta Software 
Murder in the Ram 
16K RAM. Cassette: $6.95. 

Up to 6 players. Race against the 
computer and other players to solve the 
murder mystery with clues given by the 
computer. 


84 


Bomis Prendin Software 
The Great Communicator 
2K RAM. Listing: $1. 

Try your hand at video ventriloquism. 
Stage your own press conference with 
this animated likeness of you-know-who. 


Bob Brown 
Kong 
16K RAM. Cassette: $5. SASE for infor- 
mation. 

Leap over barrels and climb ladders to 
make it to the top. Machine code version 
of the popular arcade game. 


Brown Cottage Industries 
Noah's Ark 
16K RAM. Cassette: $8.95. 

Ultimate nonviolent computer hide- 
and-seek game. Noah must find 52 animals 
that may be hiding in more than 7000 
bytes of graphics and bring them to the 
ark before the flood. Highlights: 4-way 
scrolling, animals that follow, a flowing 
river, continuous graphics, single key 
commands. ML. 


Crypto-Whammer 
$6.95. 

For solving cryptograms. Lists original 
cryptogram and changes together on the 
screen. Performs character count. 


Bug-Byte Software 
House of Gnomes 
16K RAM. Cassette: $16. 


Dictator 
16K RAM. Cassette: $20. 

You have just become the 129th presi- 
dent for life of Ritimba, a typical banana 
republic. The economy is a mess, the 
people are volatile. You must maintain 


_ your popularity with the army, the pea- 


sants, and the landowners; if you do not, 
they will plot against you either assassina- 
tion or revolution. You will be assisted by 
the secret police who give a information 
on the state of the country. 


Cleva Computer Ware 
Snakebite/Battle 
16K RAM. Cassette: $9.95. 

Snakebite: Eat the snake before it eats 
you; variable speed; create your own 
hazards. Battle: Demanding game of 
military strategy that can be played by 1 
to 4 players. 


Computer-Wear Software 

Scramble 

16K RAM. Cassette: $11.95 plus $1.50 
s&h. 

Educational word game for the entire 
family; similar to popular word games 
with one important difference: the com- 
puter is a fully automatic moderator 
between 2 human players and generates 
jumbled words. First human to unscram- 
ble word earns vital points. Invalid words 
do not count. Penalties. Selectable game 
duration/difficulty. 


Cottage Technology 
You re the Boss 
16K RAM. Cassette: $9.95. 

A business simulation game. You make 
the production and marketing decisions. 
For fast growth, invest the profits in new 
products and factories. Guide your com- 
pany through booms and recessions, pit- 
falls, and opportunities. A game of strat- 
egy for 1 or 2 players. 


CRC Software 
Panzer SS 
16K RAM. Cassette: $12.95. 
Shoot the enemy tanks!! But, look 
out... 


Alphabet Soup 
16K RAM. Cassette: $12.95. 

Children learn to identify letter and 
numbers. A great preschool aid. 


Data-Assette 
Time Bandits 
16K RAM. Cassette: $19.95. 

Travel through time to gain fortunes. 
Encounter the Minotaur’s Labyrinth, 
Napoleon’s Army, the Titanic, the Tower 
of London. Finally, you must cross the 
Hall of Death in the Castle of the Prince 
of Ultimate Evil. 


Great Western 
16K RAM. Cassette: $19.95. 

Take your wagon train across North 
America using maps, both national and 
local. Hunt for food, trade for food, water, 
ammunition. Beware of attacks on your 
wagon train. By Newsoft. 


Rampage 
16K RAM. Cassette: $19.95. 

PEEK and POKE your way through an 
adventure right inside a 16K RAM pack. 


SYNC Magazine 


PROBLEM 


Where to find high quality business and educational 
software at the best price 


SOLUTION 


FILER - 16K 
Stores, sorts, and retrieves data $9.99 


REMINDER - 16K 
Scan by date to keep track of bills, 
appointments, birthdays, etc. $9.99 


TEACHER - 16K 
The computer can quiz you on any 
list you enter. $9.99 


All programs have options to print data on 
Timex Sinclair Printer 


PROBLEM 


Where to find hardware and software to suit your every 
need. 


SOLUTION 


Specialized hardware and software can be provided for 
any need. So whether you need software for the class- 
room or hardware for automation, we have the 
solutions. 


Write for all the facts 


SOLUTIONS 
P.O. Box 1144 
Piscataway, NJ 08854 


NEW, 


s0 \Y SAVE $$ 
2X81 ONLY 


TIMEX Naas (S69, 
vic20 fx med 
APPLE 11 @ oa 


4 


ttt 
e UNLIMITED VocasuLary 
© AMPLIFIER + SPEAKER = 
®INPUT FOR-EARS-MUSIC 


SMART SPEECH | , 
EARS! 


SPEECH 
INPUT 


FOR ABOVE 
LISTED 
COMPUTERS 

S OTHERS CALL 
(SOME NEED 1-0) 


eo 


epeect RECOG 3NI TION 


Hugely successful Speech Recognition § 
System, complete with microphone, 
software and full instructions 


SYNTHESIS | BUILT TESTED & GUARANTEED 
SSTEREOtTIGLINE CONTROL POR 


PLAY 3PART MUSIC, EFECT,DRUMS ECT. 
/a PORT TO CONTROL ROBOT, S4S9kiT 
HO CUR ARS ECTĪBUILT $59 
SPEECH CHIP SX-01 $36 
QA. res 657 TAX] 
(213) 6605217 


AUDIO VISION 
1279 N. NORMANDIE 
LOS ANGELES, CA 90027 


WE HAVE WAYS 
OF MAKING YOUR 
ZX81 TALK 


THE ZXTALKER 


s UNLIMITED VOCABULARY 

® VARIABLE FREQUENCY 

a SPEAKER & 500mW AMP INCLUDED 
® INCLUDES SAMPLE SOFTWARE 

® $9995 


THE ZXPANDER 


® USE 3 PERIPHERALS AT ONCE 
s REDUCES WOBBLE $2495 


CALL 1-408-379-5160 FOR DEMONSTRAT ION 
SEND CHECK OR MONEY ORDER OR SASE FOR SPECS 
CA RESIDENTS ADO APPLICABLE SALES TAX 


EE OS OE AE AT RE PSG AER Se! MY SEE DE MS RE 
USER FRIENDLY RESEARCH 
478 W. HAMILTON AVE. SUITE 154 
CAMPBELL,CALIFORNIA 95008 


INCLUDE 5% FOR POSTAGE EXTRA REFUNDED 


LEARN COMPUTER cel APPLICATIONS: 


A pe a wy 
g yi ty 


TIMEX 1000, ZX-81 (80) 
o 8-Port i0 


interfaces up to eight 
one-byte ports 


Accepts 16K RAM 
10 $89 


c ADDA k 
2-channels A/D, 2-D/A 


Computer sensing and $ 
control of (analog) ps paa 
electrical devices (0-5V) | e ` 


ADDA $89 
C Beeper (Clock / Switch) 


Programmable frequency tone generator, 
clock (milliseconds to years)... 


BCS $89 


Each board comes with educational docu- Box 1140 
mentation, applications, 2000 Center Street 
icro 


ORDER 

TOLL FREE: 

300-227-1617 
operator 641 


(CA, 800-772-3545 
operator 641) 


and applications programs Berkeley, CA 94704 


(1K RAM). $5 handling 
developments 


charge on all orders. 


Games, continued... 


43 memory locations must be PEEKed 
and POKEd to make progress. On LOAD- 
ing the program, you find that it has been 
overtaken by the Mad Programmer. You 
must trap him in a location from which 
there is no escape. By Newsoft. 


Airline 
16K RAM. Cassette: $14.95. 

Object: to make enough profit to take 
over British Airways. Decide on number 
of aircraft to operate, to buy or charter, 
level of staffing and maintenance, 
whether to have longterm fuel contracts 
and whether to repay loans. Problems 
encountered: strikes, cancelled flights, 
hijacks, and aircraft crashes. Uses histo- 
grams, bar charts, and graphics to simu- 
late the information available. 


Dallas 
16K RAM. Cassette: $14.95. l 
Object: to make enough profit to take 
over Euing Associates. A map of Texas 
shown splitting the region into hundreds 
of plots each with a potential to discover 
oil. Make seismic surveys, bid for conces- 
sions, drill for oil, build production facili- 
ties and lay pipelines. Direct your corpor- 
ation along many diverse routes. Menu 
driven. 


Autochef 
16K RAM. Cassette: $14.95. 

Object: to make enough profit to take 
over Trust House Forte in the shortest 
possible time. From information supplied 
decide on which type of outlet to operate, 
the price of the menu, whether to enter 
into loan contracts or purchase consign- 
ments of food or wines and the level of 
advertising, wages, and dividends. Deci- 
sions influenced by levels of inflation. 


Print Shop 
16K RAM. Cassette: $14.95. 

For managers interested in testing their 
business acumen. The game spans a per- 
iod of 12 weeks and each week the player 
must make decisions on the number and 
category of staff to employ, amount and 
type of paper to purchase, the quotation 
for each job, and the scheduling of work 
to the optimum week. 


TS/ZX Pac Man 
16K RAM. $19.95. 

Fantastic recreation of the famous ar- 
cade game. Fast moving, several degrees 
of difficulty depending on your skill. 


Emvee Software 
Mini-Manufacturing 
16K RAM. Listing: $6. 
Compete against another player or the 
computer to manufacture a set of 5 orders 


for 3 different product types (produced 
by being sequentially processed through 
3 separate machines). Random events 
(e.g., strikes) can disrupt your planned 
production schedule. Variable program 
parameters give vast permutations of 
game challenges. Full instructions. 


D. Ernst 
Cave of Destiny (001) $10. 

Plays like many of the popular role 
playing games except that the computer 
is the game administrator. Includes 
instruction booklet and dice. 


Florida Creations-Dept. SBG 
Madame Ruby Package 
16K RAM. Listing: $5. 

Artificial intelligence simulation. Ask 
her anything. She examines your ques- 
tion and gives you an answer which 
makes it seem like she understands you. 


Friendly Computer 
Strip Poker 
16K RAM. Cassette: $9.95. 

The traditional game, improved and 
computerized. For 2 or more players. 
The computer deals the cards, records 
the bets, announces the winner, guides 
the players through the game, and does 
all record-keeping. Strip Poker can be 
used by anyone. 


Haymarket Software 


TY 
E 


HAYMARKET HANGMAN 


SPACE TREASURES 
PATTERNS/TOWERS 
M 


$each Total 


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AZE-6-TRBASURE 

SUB TOTAL 

FLORIDA RES. +5% TAX 
HIPPING AND HANDLING 


S 
T 


CUSTOM-DESIGNED 
ATTACHE CASE 


FOR 
1X 80/81 & TS1000 


$34.95 PLUS $3.50 P/H 


CHECK OR MONEY ORDER 


COMPUTA-DEK 


6009 KENWOOD OR. 
NASHVILLE, TN 37215 


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Pee 

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Send gcheck or gmoney order to: 


HAYMARKET SOFTWARE 
P.O. BOX 14026 . 

Jacksonville, Florida 
32238 


BKAGK ZxX-Bl/TS-1000 


If our tape fails to load for any 
reason, we will replace it free!! 


SYNC Magazine 


P. Hargrave 
ZX Froggie 
16K RAM. Cassette: $14.50. 

Froggie must cross the busy highway 
and hop from log to log to get home. 
Featuring: full screen moving graphics; 
fast machine code action; four levels 
with different screens and increasing 
speed. Name best scores and SAVE for 
the next time. Arcade Type. 


Gladstone 

Concentration/ Word Challenge/Number 
Challenge (Z58) 

16K RAM. Cassette: $14.95. 

3 games: Concentration: 3 ways to play; 
match numbers, shapes, or patterns with 
a friend or the computer. Word Chal- 
lenge: Modelled after the famous word 
game Boggle; up to 6 players. Number 
Challenge: How many numbers can you 
recall . . . backwards? 3 levels; up to 6 
players against the computer. 


Marine Rescue (Z96) 
16K RAM. Cassette: $9.95. 

Your ZX81 is the command console as 
a diver descends to the sunken submarine 
the Nautilus to rescue as many of the 
stranded crew as possible. It is a race 
against time as you oxygen supply must 
be replenished and a constant battle 


against marauding sharks which you can 
attempt to blast with your laser. 


Around Europe in 80 Hours (Z82) 
16K RAM. Cassette: $11.95. 

You are in your club in London, where 
you have just had a blazing row with Sir 
Roger Partington- Smythe and accepted a 
wager of $20,000 against your traveling 
around Western Europe and obtaining a 
souvenir from the capital cities within 80 
hours. 


Pop Star (Z84) 
16K RAM. Cassette: $9.95. 

A question and answer game simulating 
the exciting world of popular music. Will 
you make it big and become a star, or go 
broke? 


Inheritance (Z77) 
16K RAM. Cassette: $11.95. 

Your great uncle is planning to leave 
his entire estate to you, but first you must 
prove your financial acumen. If you suc- 
ceed in this first challenge, you will be 
invited to load part B where greater 
opportunities for riches await. 


Run the Country (Z77) 
16K RAM. Cassette: $11.95. 
A game of political and financial 


(mis)management in which you are run- 
ning the country. Set policies. See how 
your tax changes affect the economy. Will 
your reforms improve things? How will 
your budget grapple with inflation and 
unemployment? What about foreign ex- 
change rates? Are these things really with- 
in your control? Can you manage to get 
reelected? 


Glassware-D. Glass 
Goldmine 
16K RAM. Cassette: $4.95. +75¢ S&h. 
A challenging, full-screen graphics 
game, with on-screen instructions and 
prompts. You (the miner) move into the 
mineshaft, collecting gold pieces. Blast 
away rocks to get more, but watch out 
for cave-ins above! Blast your way back 
out to cash in part of your gold for more 
dynamite, and put the rest in the bank. 


Spider Case 
16K RAM. Cassette: $6.95 + 75¢ s&h. 
An action graphics game with seven 
full-screen rooms. You must move safely 
through each room, avoiding trained spi- 
ders and the webs they leave. Your next 
room will have one more spider and one 
fewer escape door than the one you are 
in now. Escape all the spiders and webs 
through all seven rooms to win. 


The original: 


EZRA GROUP II 


ZX-FORTH.. 


Don’t Be Misled By Cheaper Imitations! 


ZX-FORTHm , from The Forth Dimension, is the only full- 
function alternative language available for the ZX-84 
+T$§/4000 computers. Just a few of the many functions 
that are part of ZX-FORTHm are: auto repeat keys, 
pixel graphics, customized backups and a full screen 
editor. Code witten in ZX-FORTHm is easily trans- 
portable to any other 79-Standard Forth System. 
Included with ZX-FORTH is: 
14. Comprehensive Users Manual; 
2. 2 Sample Programs — BREAKFORTH — An 
arcade-type action game; 
SCRATCHPAD — A simple word processor. 
3. ZX—FORTHm quick reference card. 


ZX-FORTHm™ 16K Cassette 
Manual Only 


+ $2 - Shipping & Handling 
+ $7 - Shipping & Handling outside North America 


The Forth Dimension 


1451 N. Union Street 
Middletown, PA 17057 
Phone: (717) 944-6000 


PA Residents Add 6% Pa. Sales Tax 


Mastercard & Visa Accepted 


May/June 1983 


O EZRA GROUP II 


LOW LOW LOW LOW LOW LOW LOW LOW LOW 
PRICES! 
Biorhythms 8K ROM/1K&up........l. 00 
Graphics Billboard 8/lup.......1.99 
HOESe Race 6/100... 6c oss ckcccevd ue 
Truth Value Programming. si<o.221595 
Plotting Work Sheet 8/1........3.95 
Plotting Work Sheet 8/16.......6.95 
SPINNER TM(like Rubik's) 8/16...2.900 
Improved SLOW PAUSE.......+2eeel.Q@ 
Linear Regression 8/lup........2.00 
CHEWTER TM(like Pacmn) SLOW/lup.2.95 
DOG: RACE. O71UD. oi oss oo 0 sc «eee oD 
Random MUSIC!ISLOW/1 up.........2.9@ 
TAP WRITER TM(Handicap Aid)8/l.free 
CHAR. Generator Demos 8/lup....2.95 
ORDER,SASE,reSASE gets you GOO- 
DIES Catalog and LIFREE! | Program 
e o (Dealer Inquiries Welcome) 


EZRA GROUP II 
EZRA GROUP II 


POB 5222 San Diego,California 92105 
POB 5222 San Diego,California 92105 


87 


CALLING ALL 
T S 1000/2000 
PROGRAMMERS 
IN THE UNITED STATES 
OF AMERICA 


WE require original software, we 
will evaluate, and then we will 
market on a worldwide basis if 
acceptable. 


WE will pay royalties of between 
10% to 20% depending upon 
quality. 


OF particular interest is software 


based upon United States games 


e.g. baseball, basketball, football 
etc. 


PLEASE send cassette tape (no 
print outs) to: 


SUSSEX SOFTWARE HOUSE 
57 BEXHILL ROAD, 
EASTBOURNE, 

E. SUSSEX. 
ENGLAND. 


PUT YOUR TIMEX/SINCLAIR 
COMPUTER TO WORK! 


TIMEX/SINCLAIR SOURCEBOOK™ 
e SOFTWARE | 
e HARDWARE ADD-ONS 
e BOOKS/CATALOGS 


Maximize your ZX80, ZX81 or TS1000 
computer investment with the TIMEX/SIN- 
CLAIR SOURCEBOOK which lists programs, 
hardware accessories and reference books. 

The SOURCEBOOK allows you to quickly 
identify the ZX computer products you need 
from a wide variety of sources to put your com- 
puter to work. Order your copy today — 
over 600 listings — only $6.95. 


TIMEX/SINCLAIR SOURCEBOOK™ 

Micro Design Concepts 

Dept. SC-3 

P.O. Box 280 

Carrollton, TX 75006 

Please send me the TIMEX/SINCLAIR 

SOURCEBOOK. | enclose $6.95 plus $1.25 

P&H ($2.50 outside the U.S.) Add sales tax 

in Texas. 

Name _ Signs RS es RUC eae Se r AA 

rE lie aS i Sige: re SRT, ER ATE ey Se a ea 

CIAL as, 

Statea a eee oe a 
Have a product you would like listed? 

Li Check for an application for free listings. 


88 


Games, continued... 


Graphicomp 
Breakout | 
16K RAM. Cassette: $14.95. 

Classic paddle/wall game, includes 
seven bat angles to increase difficulty. 
Supports Mikro-graph Joystick. 


Frog 
16K RAM. Cassette: $14.95. 

An amusing test of skill. The goal is to 
get across the river by jumping from log 
to log without misshap. Supports Mikro- 
graph Joystick. By Mikrogen. 


Haymarket Software 
For Adults Only 
16K RAM. Cassette: $19.95. 

After conducting private interviews 
with you and your lover, the computer 
will select a sexual scenario (from over 
one hundred) that fits your combined 
moods. This one is so large it was ac- 
tually written in three parts. Though 
definitely not for children, this program 
can be educational as well as a lot of fun. 


ZX-Black Hole 
16K RAM. Cassette: $10.95. 

The object of this board game is to lo- 
cate a number of atoms hidden on an 
8 x 8 board by observing the reactions of 
laser beams fired into the box. Both the 
board and all the rays are displayed at 
all times. 


ZX-Concentration 
16K RAM. Cassette: $8.95. _ 

The object here is to find more of the 
18 pairs of letters hidden on an 8x8 
board by observing the reactions of laser 
beams fired into the box. Both the board 
and all the rays are displayed at all 
times. 


Flip-Flop | 
16K RAM. Cassette: $10.95. 

Outsmart your opponent or the com- 
puter to win. The object is to get four 
pieces of the right color in a row. The 
problem is that the space a piece is on 
determines the color. There are 5 levels 
of difficulty. 


Hensley and Associates 
Flight Simulator 
16K RAM. Cassette: $10. 

A real-time flight simulation program 
for all armchair pilots: aircraft control, 
instrument reading, flight path viewing, 
and close encounters with flight hazards. 
Includes a “pilot rating” scoring system 
to measure your skills in handling these 
controls. 


Flight Simulation/Airline Management 
Game 
16K RAM. Cassette: $10. 

The ultimate in an exciting, educa- 
tional, and edge-of-seat game for all ages. 


Experience the tremendous real-time 
graphics capability of your computer. 
You are faced with one crisis and decision 
after another concerning the survival of 
your aircraft, your airline business, and 
your passengers. 


Hewson Consultants 
Nightlite (Flight Simulation) 
16K RAM. Cassette: £5.95 in VAT. 
You are the pilot of an aircraft with a 
number of instruments: A/H, artificial 
horizon. ADF, automation direction 
finder. VOR, VHF omni directional 
range. ILS, instrument landing system 
indicates the line of the ideal glide path 
and the center line of the runway rel- 
ative to the aircraft. 10 other 
instruments. 


Pilot (Flight Simulator) 

16K RAM. Cassette: £5.95. | 
Essentially the same as Nightflite, but 

without the high resolution graphics. 


Horizon Simulations 
Quest for the Staff of light 
16K RAM. Cassette: $9.95. 

You must recover a lost Staff to its 
owner before its too late. This adventure 
has over 80 rooms and a large vocabu- 
lary. Adventure accepts any length 
command. 


Human Engineered Software 
Gulper 
16K RAM. $15.95. 

Arcade style game of chase, capture, 
and evasion. Gulp IT has its own unique 
features, which include no less than 15 
selectable game areas (mazes), 9 grades, 
and 9 speeds. 


Just Games 
Froggy Hop 
16K RAM. Cassette: $9. 

Can you help a poor little frog? He 
wants to go for a swim in the lake. But the 
lake is on the other side of the road. 
Would you please help this frog get to the 
lake? 


Kopak Creations, Inc. 

Towers of Hanoi 

16K RAM. Cassette: $14.95. 
An adventure game. 


Day at the Races 
16K RAM. Cassette: $14.95. 

Pretend you are at the British race 
track, and win big money. 


Pontoon 
16K RAM. Cassette: $14.95. 
Card Game. Great graphics. 


Grand Prix 
16K RAM. Cassette: $14.95. 

You are driving a fast and easy race 
car. A nice graphics game. 


SYNC Magazine 


“Ss covets y= 6 ky ee apse a a Bente EWN esrccircaet ey See 0 reek E N a a a EE ae OP RS T 


Enhanced Basic 

16K RAM. Cassette: $19.95. 

32 page tutorial. Hex-decimal conver- 
sion as standard. 


Towering Inferno 
16K RAM. Cassette: $14.95. 
High adventure, danger and fear. You 


are climbing a high rise tower. A hor- 


rible danger threatens the people that 
live there. It is your job to save them 
from falling. Good Luck! i 


Breakout 

16K RAM. Cassette: $14.95. | 
Similar to the arcade game. Written in 

machine language. 


The Flight Simulator 
16K RAM. Cassette: $19.95. 

Simulates flight in an aircraft. Great 
graphics game. 


Puckman 

16K RAM. Cassette: $14.95. | 
Fast action machine code game. Do 

not let the ghosts get you. Go for your 

power capsules; eat those energy dots. 


Instant Software 
Mountain Pilot (452TS) 
16K RAM. $9.95-$19.95. 
This is a flight simulation of a moun- 
tain pilot. His goal is to bring supplies to 


a far-off town and return through a 
treacherous mountain pass. Also gives a 
realistic air-flight landing simulation. 


Integrated Data Systems 
Centipede 
16K RAM. Cassette: $11.76. 

For use with graphics ROM. If you do 
not destroy the centipede, you have two 
to fight. 


Peckman 
16K RAM. Cassette: $11.76. 
For use with graphics ROM. 


9 Games from Kayde 
16K RAM. Each on a cassette: $11.76 
each. 

3D/3D, Mugsy, Murgatroyds, Murga- 
troyds’ Revenge, PEP, Pilot, Puckman, 
Space Intruders, Centipede. 


Games from Oasis Software $14.80. 
Chess, 3D O's and X’s, Code Breaker, 
Nim 


From Ezra Group II 

Biorhythms, Graphics Billboard, 
Improved Slow Pause, Skew-a-Sketch. 
$1.04 each. 

Horse Race, Linear Regression, Dog 
Race, Random Music, Shootist. $2 each. 

Chewter, Character Generator. $2.96 
each. 


Intercomputer Inc. 
Krazy Kong (FG1013) 
16K RAM. Cassette: $12.95. : 
Machine code version of the popular 
arcade game. Has all the features of the 
original and is every bit as fast. Try to go 
up the ladders to save little Jane, and 
avoid being hit by drums Kong throws at 
you. The screen changes when you reach 
Jane. Now crash the support to conquer 
the Kong and score points as you 
progress. | 


Ghost Hunt (FG1014) 
16K RAM. Cassette: $12.95. 

Gobble your way through a maze of 
ghosts, power pills, etc. Chomp your 
candy to keep running; try a power pill to 
make a meal out of the ghosts. The menu. 
is very fast. 


Jeopardy (FG11003) 
16K RAM. Cassette: $12.95. 

Improve your memory with this game. 
You are dealt 45 cards, face up, including 
one wild card. Before seeing the cards, 
you must pick the number of matched 
pairs needed to win. You have several 
seconds to memorize as many matching 
pairs as you can before the cards are 
turned over. The object is to equal the 
score you chose. Your score is displayed 
at the bottom of the screen. 


for the 
Timex Sinclair 1000 
Sinclair ZX80/ZX8 


FOR TOTAL 
CONTROL 


of Your Timex Sinclair 


questions. 


Please send 


Total Enclosed 
Name 


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O Check O Visa 


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om TTT TT TTI) Si. 
Expiration Date 


The Only Programming Manual You’ll Need 


Learning Timex Sinclair BASIC, Dr. David Lien’s new, 350-page, 
comprehensive manual for the Timex Sinclair 1000 and Sinclair 
2X80/ZX81, is the one book that answers all your programming 


Learning Timex Sinclair BASIC’s simple, step-by-step instructions 
make it ideal for the classroom. And it’s a must for all Timex _ 
Sinclair owners, especially first-time computer users. Don’t miss 
this opportunity to learn from a proven teacher of BASIC how to 
write your own custom software. 

Don’t waste time with other confusing, incomplete programming 
guides — order Learning Timex Sinclair BASIC now. Fill out the 
coupon or call our 24-hour order line at 800-854-6505, in California 
call 619-588-0996 (8:00 a.m. - 5:00 p.m.). 

30-Day Money Back Guarantee 

If you’re not totally satisfied with this book for any reason, return 
it to Compusoft in salable condition within 30 days for a full refund. 


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—— copies of Learning Timex Sinclair BASIC at 
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Games, continued... 


Demolisher (FG1005) 
16K RAM. Cassette: $12.95. 

The object is to demolish a growing 
wall before it crushes you. Gain points by 
hitting the correct blocks. Lose points by 
hitting the wrong ones. This requires a 
careful strategy. You select the level of 
difficulty. 


Guard the President 
16K RAM 

The object of the game is to protect 
the President’s life as he speaks to huge 
crowds on his foreign tour. You control 
two bodyguards who must detect and 
eliminate terrorists in the crowd. Your 
reflexes must be swift in order to preserve 
the life of the President as well as your 
own, without hurting innocent people. 


Just Games 
Horse Race 
16K RAM. Cassette: $9. 

‘This horse race game is just like the 
real thing. First, the players place their 
bets. Then the track is displayed, and the 
horses line up at the starting gate. And 
they are off, the crowds cheer as the 
horses thunder across the finish line. The 
betting outcome is then tabulated and 
the next race announced. 


M. C. Lothlorien 

Tyrant of Athens 

16K RAM. Cassette: $9.95 (ZX81); $11.95 
(Spectrum). 

As Tyrant of Athens your objective is 
to overcome opponents, fed your popula- 
tion, and make Athens the most powerful 
state. Your plan has 2 phases: In the first 
part of the year you use the money in 
your treasury to train troops, build war- 
ships, and import or export food. In the 
2nd part you face attacks by hostile 
armies/navies. 


Roman Empire 
16K RAM. Cassette: $9.95 (ZX81); $11.95 
(Spectrum). 

You are Emperor of Rome in the early 
days of the Empire. With the legions at 
your disposal your aim is to conquer all 
the countries which are hostile to you. 
Taking account of fighting efficiencies, 
morale, energy, etc., you will need all 
your skill to strike the fine balance neces- 
sary to win. 3 levels of play. 


Peloponnesian War 
16K RAM. Cassette: $9.95. 

Striking historical accuracy has led to 
enthusiasm for this exacting wargame set 
in Ancient Greece. It covers the great 
war between Athens and Sparta and 
involves diplomacy, land and naval 
battles. You use ambassadors, generals, 
armies and fleets in order to gain allies 
for the decisive, final pitched battle. 3 
levels of play. 


90 


Warlord 
16K RAM. Cassette: $9.95. 

You are a Warlord in 13th Century 
Japan. You must spend your money to 
feed your population, build merchant 
ships, and hire mercenaries. Every year 
other Warlords attack with armies or 
Samurai, and pirates (whom you may 
attack) may capture your ships and 
cargos. You may send raiding parties to 
capture gold etc. Retain the support of 
your village and survive to old age. The 
alternative is final! | 


Samurai Warrior 
16K RAM. Cassette: $9.95 (ZX81); $11.95 
(Spectrum). 

You must met the challenges of 
Samurai opponents, overcome attacks by 
groups of marauding bandits and assist 
villages which they may attack. choose 
your course of action, improve your fight- 
ing values, and secure your food supply. 
Ritual suicide option! 7 levels of play. 
Objective: exceed points target and either 
survive to end of game or commit 
seppuku. 


The Lamb’s Software 

Breakout 3 

16K RAM. Cassette: $7.50; Listing: $2. 
A game of bouncing balls, walls, and 

paddles. A choice of three different pad- 

dle sizes is provided as well as a choice 

of paddle movement. An additional vari- 

ation allows the player to have ran- 

domized targets as well as the “breakout 

walls.” 


Roadhog 
16K RAM. Cassette: $7.50; Listing: $2. 
A three-dimensional, night-driving 
game where your object is to avoid traf- 
fic accidents. Cost per mile is continu- 
ously calculated. Accidents are caused 
by running off the road or being struck 
by another vehicle. The road will turn as 
you play and oncoming cars are gen- 
erated at random intervals. 


Flips 
16K RAM. Cassette: $7.50; Listing: $2. 
A two dimensional puzzle type of 
game with a purpose similar to Rubik’s 
Cube. The player initially chooses diffi- 
culty level from which the computer will 
create the puzzle (new every time). The 
goal of each game is to change the dis- 
play to a single video type. 


Bactrac 
16K RAM. Cassette: $7.50; Listing: $2. 
A “Pacman” style game with a “dot 
eater” and “ghost trackers.” 54 initial 
game setups are possible with choices of 
playing maze design, energy pills, and 
dot density. Arrow keys move your man 
and a running score is kept as well as a 
best score for this load. 


Maranatha 
Ahamur 

Rule your own island nation. Feed the 
people, plant and harvest, collect taxes. 
Can you rule? Or will you starve every- 
one? 9 skill levels. 


Escape 

You are trapped. You must avoid the 
starving Xdroids or guess who will be for 
dinner. 9 levels from inept to insane. 


Marketing 

Will you be a millionaire or a bum? 
The choice is yours. With luck and your 
choices you can make a million or go to 
skid row. 


Melbourne House Software, Inc. 
Wallbusters (26138MY) 
1K RAM. Cassette: $14.95. 

A game of skill with exciting moving 
graphics that fits into 1K. Try your skill 
on the easiest level because even with the 
most skillful bat control you will find the 
hardest level a real challenge. Breaking 
through the first barricade is easy, but do 
not be fooled. Two ball angles and a 
curved bat increase the challenge. By 
Beam Software. _ 


Gamestape No. 2 (13942MY) 
16K RAM. Cassette: $14.95. 

3 programs. Starfighter: Machine code 
space battle with twinkling stars and stun- 
ning explosions. Pyramid: A strategy 
game to set you thinking; move the pyra- 
mid in stages to the next of 3 bases; one 
wrong move and it all collapses. Artist: 
The ultimate aid for graphic designers; 
lets you use the screen as a sketchpad; 
then save your drawings. By J. K. Greye. 


Gamestape No. 2 (12941MY) 
1K RAM. Cassette: $14.95. 

11 games ranging from arcade and 
wordgames to the Wallbusters game. 
Includes: Klingon, Crash Landing, Simon, 
Artist, UFO, Code, Asteroids, Bomber, 
Kaleidoscope, Guillotine, and Breakout. 
By J. K. Greye. 


Reversi (26284MY) 
1K RAM. Cassette: $14.95. 

A machine code othello playing pro- 
gram. Played on an 8 x 8 board with full 
screen display; allows only legal moves; 
choice of starting positions. By Dr. Ian 
Logan. 


10 Exciting Programs (26472MY) 
1K RAM. Cassette: $14.95. 

10 games: Space favorites: Lunar 
Lander, Star Trek, Shuttle Pilot, Alien 
Alert, Space Escape. Arcade games: 
Shoot Out, Kamikaze Pilot, Battle Zone, 
Brands Hatch, and Corridors of Death. 
Includes suggestions for upgrading the 
games for the TS1000 with additional 
memory. By Clifford Ramshaw. 


SYNC Magazine 


i Se 


GET THE MOST.....GET THE BEST! 


SYBER 
.. INNOVATIVE SOFTWARE... 


BIOMATE 
A unique program system which will predict 
your biorhythm life cycles and chart your 
compatability with others. 
e Beautiful Graphics eFast eComputer Mating 
DRAGON LAIR 
A fantasy role playing adventure in a multi-level 
cavern...Complete with e Monsters e Wizards e 
Magic e Teleportation Traps e Spell of Darkness e 
Variable Levels of Difficulty e | 
e Witty e Entertaining eChallenging 
FINANCIAL MANAGER 1000 
A completely integrated business-home budget, 
expense, checking, and financial management 
system. Maintains monthly and year-to-date 
records of 35 user defined categories. 
eNumeric and Graphic Displays e 
e 23 Menu Selectable Options e 
e Multi-Ledger Capability e 
_ ©Excellent Tax Data Compiler e 
VOXCOMP 
Computer generated speech with resident 
vocabulary permitting unlimited phrases and 
sentences; allows the TS1000 to vocalize 
„instructions, answers, and messages - which can be 
integrated into your programs (speech synthesizer 
required) 
SYBER 
All programs $15.95 each 1325 Diller Rd 
for ZX-81-Timex- Ocean Springs, MS 
Sinclair 1000-16K RAM 39564 
Cassettes-Guaranteed Phone: 601-875-3682 


Ter cottage 
fist sotto logy 


O REVERSE VIDEO MODULE—Convert your TIMEX/Sinclair to the stan- 
dard white letters on a dark background for better readability and a more 
professional appearance. 

Module and instructions $8.95 


O THE LAST CASSETTE/16K FIX—Having problems with SAVE/LOAD 
when the 16K module is attached? This small modification reduces ram 
pack noise at the signal source. 

Kit and instructions $1.95 


O VIDEO MONITOR OUTPUT—A small pigtail allows you to connect your 
TIMEX/Sinclair to a NTSC-compafible standard video monitor for a 
crystal clear display. 

Parts and instructions $2.95 


O EASY GRAPH—converts your data into a fast, flicker-free bar graph 


display or print-out labeled with the approriate scale and title. It’s easy to 
update, just enter the data and let ids GRAPH do the rest. $ 
16 9.95 


O ACZ GENERAL LEDGER—Computerize your small business accounting. 
This system prepares a full set of financial statements and keeps a record 
of ledger transactions. It can handle any combination of up to 400 entries 
and accounts per session, sorts 150 entries in 10 seconds, and can be 
used with or without a printer. 

$29.95 


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Games, continued... 


R. Midura 
Shipwar 
16K RAM. Cassette: $10. 

Graphics display of dice and flashing 
graphics. 5 rounds to roll the dice and 
accumulate points. Roll as many times as 
you wish each round. Double 1’s and same 
roll lose all points for the round. You 
receive a strike for each single 1 that 
appears on one of the dice; 3 strikes loses 
all the points for the round. Pass to next 
player after rolling at least once during 
each round. Play against the computer or 
other human players. The computer will 
play 1 or all 4 of the players. 


Mindware Inc. 
From Eagle Sales 
Anagrams 
16K RAM. Cassette: $15.95 plus s&h. 
One by one the computer displays a 
series of 40 anagrams (up to 12 characters 
long). To score points, the players have 
to sort out these randomly mixed up ver- 
sions of a familiar word or phrase using 
the clues and promptings of the computer. 
The user can establish his own anagrams. 
A delight to crossword puzzle and 
Scrabble enthusiasts of all ages. By 
Christopher Jones. 


Crossword 
16K RAM. Cassette: $15.95 plus s&h. 
Crossword puzzle addicts can now 
design their own puzzles or copy and store 
favorite crosswords from books and news- 
papers. Holds puzzle formats up to 15 x 
15, along with answers and clues up to 64 
characters long. To play, call up any clue 
you want. When you guess a correct 


answer, the blank is filled in. By 
Christopher Jones. 
Pilot 


16K RAM. Cassette: $19.95 plus s&h. 

You are pilot of a small plane facing 
your instrument panel. Keep an eye on 
the artificial horizon, radio direction bea- 
cons, flight speed, engine rpms, air speed, 
altitude, runway distance, and fuel gauge. 
Practice landings, turn, and bank your 
plane; test your navigational skills. Be 
careful. You may crash!. If things get too 
rough, switch on the autopilot. By 
Hewson Consultants. 


Orbyte Software 
Compatibility 
16K RAM. Cassette: $14.95. 

A game that measures the levels of 
compatibility between two people. Enter 
the birthdates, and the computer will 
calculate whether they match physically, 
emotionally, and intellectually and to 


what extent. It will then average the indi- 
vidual percentages for an overall score of 
compatibility. 


Mega Mind 
16K RAM. Cassette: $19.95. 

Take on the computer in a game. Each 
conceals 6 shapes in 4 positions to encode 
a secret pattern that the opponent must 
decypher. Tap all your logic and memory 
in order to decode the computer’s pattern 
before it decodes yours. Enter the chal- 
lenging race against time at any of 5 
levels. 


P&B Software 
Encryptor 
16K RAM. Cassette: $9.95. 

Encrypts plain text into 5-letter code 
groups using Fibonacci chain pseudo- 
random key generator. Supports ZX 
printer. Key phrases can be user sup- 
plied or generated by Encryptor. 


Pleasantrees Programming 

ZX-Xon 

16K RAM. Cassette: $19.95 plus $1.50 
s&h. 

City of Xon scrolls 3-dimensionally. 
Your shadow follows below as you evade 
missiles, force fields, parapets, photon 
batteries, and more. Two firing modes 
knock out targets for points. 


USER FRIENDLY SOFTWARE 
for the TIMEX/SINCLAIR 1000 


Data-Manager (DM)* 


AUTO-SHIFT 
KEYBOARDS 


$80.00 


Screen prompted data collection sys- 
tem with formula fields and both form 
and spread sheet display 
Finance—Manager (FM)* 
Combines budgeting, record keeping, 
and check reconcilement into one 
operation 
Program—Manager (PM)* 
BASIC and machine code program 
monitor and utility Functions include: 
renumber, copy, delete, search, dump, 
Hex load, Hex Debug, and a condense 
mode that reduces program memory 
size. 


All programs are supplied on cassette with full 
size instructions that are easy to read and easy 
to understand. 16K required 

$14.95 each postage included 

VISA MASTERCARD or check 


TOLL FREE ORDERS 
1-800-543-3000 ask for 
operator #520 Item code* 


THESE ARE QUALITY KEYBOARDS SPECIFICALLY 
DESIGNED FOR SINCLAIR/TIMEX COMPUTERS AND 
OFFERED ONLY IN KIT FORM TO SAVE YOU ASSEMBLY 
COSTS. USE OF ACTIVE CMOS CIRCUITRY PROVIDES 
LOW POWER REQUIREMENTS (ABOUT 1mw) AND 
ALLOWS THE KEYBOARD TO BE POWERED DIRECTLY 
FROM THE ZX81 AND TIMEX 1000 POWER SUPPLIES. 
MORE IMPORTANTLY, SINGLE KEYSTROKE ENTRIES 
(NO SHIFT REQUIRED) ARE ENABLED FOR 80% OF THE 
KEYS THAT MUST BE MANUALLY SHIFTED ON THE 
ZX81, TIMEX 1000, AND MOST OTHER KEYBOARDS 
THAT ARE CURRENTLY AVAILABLE. 


e73 FULL SIZE KEYS eMULTI-COLOR KEY LEGENDS 
eDOUBLE SIDED PC BOARD e°SEPARATE GRAPHICS SECTION 
eSIMPLE ASSEMBLY eSEPARATE EDITING KEYROW 


FOR ADDITIONAL DETAILS SEND SASE TO: 
RESEARCH APPLICATIONS PRODUCTS 
4561 Paloma Lane 
Yorba Linda, CA. 92686 


INCLUDE $4.00 SHIPPING & HANDLING 


COMPUTER ASSISTANCE INCORPORATED 


PO BOX 3402 CINCINNATI OHIO 45201 / (513) 381-8778 CALIFORNIA RESIDENTS ADD 6% SALES TAX 


92 SYNC Magazine 


Se a ane ee ee OR ee a Se ee ee ee 


Boggler 
16K RAM. Cassette: $12.95 plus $1.50 
s&h. 

Word game (Scrabble type); builds voc- 
abulary while providing entertainment: 
construct words from 10 randomly 
appearing lettered blocks. Lists words, 
checks cheating, and keeps score. 2-4 
players; ages 8-80. 


ZXAK-Man 
16K RAM. Cassette: $12.95 plus $1.50 
s&h. 

A true full screen arcade game. Not a 
letter “C” gulping asterisks. ZXAK char- 
acter radiates personality. Full control, 
MC animation, scoring, multi-level, and 
strategy game. 


Pyramid Systems, Inc. 
Race 
16K RAM. Cassette: $12.95 pp. 

A two player, full-screen, road race 
simulation. Players affect car velocities 
via 9 directional keys. The game instills 
intuitive understanding of Cartesian 
velocities and vector addition. 


Reston Publishing Co. 
The Nowotnik Puzzle 
16K RAM. Cassette: $12.95. 

A fiendish new game puzzle to work 
on the Timex/Sinclair 1000 or ZX81 
screen. By Dr. David Nowotnik. 


Demolition/10-Pin 
16K RAM. Cassette: $12.95. 

Two Timex/Sinclair 1000 and ZX81 
games on one cassette. Users can try 
their skill on the “breakout” style 
Demolition, then play the bowling game 
10-Pin. By Dr. David Nowotnik. 


Software Development Associates 
Gambler One 
16K RAM. Cassette: $9.95. 

Bandit: Turns your computer into a 
slot machine. You start with $200 and 
make bets of $1 to $5 on each play. Rou- 
lette: Try your luck on the spin of the 
roulette wheel. You may wager on single 
numbers, a column of numbers, a dozen 
numbers, red/black, high/low, or 
odd/even. 


Simulsion 
Escape from Stalag Luft III 
16K RAM. Cassette: $14.95. 

A strategy game by Steve Barrett. As a 
POW, you must make disguises, forge 
papers, dig tunnels, hide wirecutters, 
watch guards, and, at the right moment, 
attempt escapes. Blitzouts are displayed 
on an overhead view of the camp. Guard 
Strategy is stored in “The Brain.” Play 


against the kindly Hauptmann Reuss or 
the efficient, terrible Prussian, Komman- 
dant Von der Eiche. 


Softsync, Inc. 
Road to Riches 
16K RAM. Cassette: $14.95. 

Up to four players make investments in 
all kinds of business ventures from real 
estate to the entrepreneurial high risks of 
show business. A game in which you are 
an instant millionaire and compete to 
build your financial empire. 


The Software House 
Western Adventure 
16K RAM. Cassette: $6.50. 
Cross the Great West in your covered 
wagon. 


Beltway Bandits 
16K RAM. Cassette: $6.50. 

Race around the beltway with the 
wacky racers. 


Strategem Cybernetics, Inc. 
Cyborg Wars 
16K RAM. Cassette: $15. 

Educational game simulates four mili- 
tary-industrial economies competing 
over limited agricultural resources. Out- 
come depends upon intellect, patience, 
and cunning. Players learn geopolitical 
realities: arms race, balance of power, es- 


a ea pee eS I ae ee 


ZX-PANDING, LTD. 
P.O. BOX 25 
NEWTON, NC 28658 


*NOW AVAILABLE* A DATA STORAGE SYSTEM 
THAT ALSO OFFERS GRAPHING CAPABILITIES! 


DATA STORAGE AND DISPLAY STYSTEM — 16K — stores up to sixty data 
points in up to twenty-five files under user-defined titles. Data can then be 
recalled in either a tabular form or as a solid graph accompanied by a brief data 
summary including file sum, mean, range, and closing data. Useful in any 
field — business, home, investments, scientific experimentation —anywhere 
that numbers are important. Others sell mere storage programs for $21.95 to 
$29.95; we offer these extended capabilities on cassette for .. ONLY $14.75.* 

Specially labeled 30 minute data storage tapes for ONLY $1.95.* 


CHECKBOOK, INCOME TAX AND BUDGET ORGANIZER—16K A powerful yet 
easy to use finance program—10 jobs in menu driven format. Checks and 
deposits are totaled and itemized under desired categories for budget plan- 
ning and income tax preparation. Makes checkbook balancing easy. Ninety 
transactions manipulated at one time with 16K, many more les 


ZX-PANDING, LTD. is a growing company, but we still hold true to our 
original goals of having useful programs at reasonable prices with easy-to- 
read instructions. Each program is on cassette and is thoroughly tested. For a 
free catalog send a large self-addressed stamped envelope. 


*ALL orders 
order to cover 
(Foreign orders add $2.00 to cover air 
costs. Your payment must be in a U.S. 
dollar draft payable to U.S. bank.) 


WRITE US 
CONCERNING 
SOFTWARE FOR 

, PRINTERS! & 


pease add $1.25 to total 
OSTAGE AND HANDLING. 


SCIENCE FICTION 
Games of Bart Trueheart 


SO1: THE MALTRAXIANS ATTACK $9.95 
SO2: RAID ON COLONY ALPHA $9.95 
SCIENCE FICTION 
ADVENTURES 
SOA1: DETENTION STATION INTRAG $13.95 

SOA2: ESCAPE FROM THE DARK SYSTEM 
$13.95 


FANTASY ADVENTURES 
of Simon Swordwielder 
MSA1: LABYRINTH OF THE NECROMANCER 


Part 1 of the adventure of the wandof Kormantu 
MSA2: UNDER THE TEMPLE OF KHARDAM 


Part 2 of the adventure of the wand of Kormantu 
All games are for ZX81/TIMEX 1000 16K RAM 


All games include cassette instructions and pro- 
gram notes. 

Add 10% for postage and handling. 

Send cheque or money order to: 


TURNER, ELCY & COM., 


$14.95 


$14.95 


P.O. Box 395 
Port Huron, MI 


93 


Games, continued... 

pionage, exploitation of alliances, and 
utilization of military potential. Up to 4 
players. 


Timeworks, Inc. 
The Quiz Kit. (1101). 
16K RAM. Cassette: $16.95. 

Construct your own quizzes for any 
subject in which multiple choice or true/ 
false questions can be used. “Video game” 
atmosphere is achieved through the 
scoring to give the player the attitude of 
“me against the computer.” Players can- 
not cheat because only you know the 
secret password to recall the answers. 
Store your quizzes on tape. 


Presidential Campaign. (1205). 
16K RAM. Cassette: $14.95. 

You have been nominated for the office 
of the President of the United States. 
Now the work begins. You must conduct 
a nationwide campaign to win the confi- 
dence and support of American voters. 
Will you be the next Commander and 
Chief? A game of skill and strategy for 1- 
4 players. 


Wall Street. (1204). 
16K RAM. Cassette: $16.95. 

You are a savvy Wall Street investor 
speculating in stocks, real estate, precious 
metals, minerals, and the money markets. 


You have limited dollars to invest which 
will put you on Easy Street or into the 
Poor House A financial advisor is avail- 
able to assist you but he is not always 
right, and he is expensive. No special 
investment knowledge required. Realistic 
simulation for 1-4 players. 


T-S Systems 
Brickbats 
2K RAM or larger. $9 plus large SASE. 
Combines the features of Breakout and 
Maze Chase games. You place bats on 
the screen to destroy randomly placed 
bricks, but each bat stays where you put 
it. Soon the entire screen will be filled 
with a maze of bats, showing hypnotic 
patterns. At the end you find the number 
of bats used and the time you spend in 
your game. 


Growing Snake 
16/48K Spectrum. Listing: $4 plus large 
SASE. 

Very colorful game. You control the 
head of the snake with the cursor control 
key and the rest of his body will follow. 


Hungry Animal 
16/48K TS2000. Listing: $5 plus large 
SASE. 

Manuever a hungry Centipede along a 
tunnel without touching the walls while 
eating as many grubs as possible. 


2-Bit Software 
Mind vs. Machine 
2K RAM. Cassette: $9.95. 

Four opportunities to beat the com- 
puter Tic Tac Toe I and II: Basic and 
advanced variations of the classic game 
of strategy. Chocolate Truffles: Makes 
you plan ahead to “take away” the last 
luscious truffle. Superspy: Gives you a 
chance to decode secret messages smug- 
gled out from behind the “silicon” curtain. 
Ages 12 and up. 


Square. (C3014). 
16K RAM. Cassette: $7.95. 

This program could replace the cube. 
It can be played as a solitaire game or 
contest with your friends. Many levels of 
play. You can rerun the move using the 
right answer to see how it would turn out. 
Scores are printed at the end. 


UAS 
Integer. (C3017). 
16K RAM. Cassette: $7.95. 

A new number game. Ten levels of 
complexity; play against the computer or 
others; try to outsmart the computer; 
great aid for learning arithmetic as well. 


Video Arcade 
Pete’s Factory 
16K RAM. Cassette: $12.95. 
Pete’s factory is the first in a series of 


he central theme of quantitive 
echniques of forecasting is that 
the future can be predicted by 
discovering the patterns of events 
in the past. Many methods of fore- 
casting are integrated into this 
software package, ineluding. 
Moving Averages, Weighted ov- 
ng Averages, Linear Exponential 
moothing, Quadratic =xponen- 
al Smoothing, Trend Analysis, | 
~Length-Squares Regression, Cor- 
elation Co-efficient, Co-efficient 


of Determination, Standard Error 
of Estimate, Mean, Student Devia- 
tion, and many other statistical 
methods. 


Useful in areas such as: 
@Stock Market Trading 
 @Commodi 

~@inventory 


ZX FORE :CASTING is supplied on 
cassette and is accompanied by 
extensive documentation. 


e Commodity Futures Markete Stock MarketeInventory Controle 
e Biological jperimca= Predici < Student Grades ® 


Future Trading 
ontrol 


THE PEOPLE’S 
COMPUTER 


MAKE YOUR TIMEX: SINCLAIR ZX80/81 DO EVERYTHING 
APPLICATIONS WITH HARDWARE & 


YING GAMES TO SERIOUS BUSINESS 
SOFTWARE FROM 


ee oe eee oe ee ee ee sk eG re SA A eee ere eee ‘se es ee ee 8 ee eee $29. 95 


Sub-Total 


Ark. Se add 
% Sales Tax 

$2.25 shiesine and 
Handling 


-TOTAL ENCLOSED 


“WE PUT A LOT OF THOUGHT 
BEHIND OUR SOFTWARE: 


Cassette Software . 


ZX FORECASTING 


SIMPLE TO USE BUT HARD TO DO WITHOUT 


94 


THE PEOPLE’S COMPUTER SUPPLY. 
MEMOTECH PRODUCTS OUR PRICE OTHER PRODUCTS 
#164KMEMOPAK....__........ $144.95 
#232KMEMOPAK............... 95.95 #1 es pAn aes 
#3 1GKMEMOPAK Goo ee 5495 GENERATOR ................ : 
# 4 NEW 16K BASELINE 
#2 HIGH QUALITY 9” GREEN 
ME maa ees 45935 PHOSPHOR MONITOR `... $115.95 
#5 BABA (EL PRINTER Noe Requires Direct Video Mod to ZX81 
ro ERTE 7495. _. FREE Plans with order. simple in- 
3 tallation 
tor 7 Beactgilon ual Pica Yolai_] # 7 RS232 INTERFACE FOR A 
2 PRINTER & MODEM........... 95.95 


# 8 PRINTER CABLE SPECIFY #3 WILLIAM STUART SYSTEMS LTD 


ROSZ OR: CPH e NENET 19.95 SPEECH SYNTHESIS UNLIMITED 
# 9 NEW DIRECT CONNECT VOCABULARY FOR ZX80-81 
FULLSIZE KEYBOARD ....... SE aE N o ame a hale ae EEA Fe 99.95 
No Soldering. plugs into edge connector 


#10 SEIKOSHA GP 100A DOT 


MATRIX PRINTER .325.00 . . 399.95" #4 a Hpg SPEECH PRAAN 
SEIKOSHA GPIO DOT. oe eS A e NOEM eS e ch oe AEE 
MATRIX PRINTER 369.95 . . .449.95° CRASH. GUARD PROTECTION FROM 


"Paratlel Printer Package - includes Cable& ACCIDENTAL CRASHES . .19.95 


CPI interface. 


VISA, MASTER CARD & AMEX PERSONAL CHECK 
& MONEY ORDERS ALLOW 2 WEEKS 


Foreign Orders Please Add $5.50 
U.S. Orders Please Add $3.00 
Printer & Monitor Orders add $7.50 


THE PEOPLE’S COMPUTER SUPPLY 
P.O. Box 664, Sidney, Nebraska 69162 
Order Phone: Tel. 308-254-3208 


SYNC Magazine 


arcade type games planned by Video Ar- 
cade. Pete is a young man whose factory 
has been taken over by the “Evil Stu- 
arts.” Stuart has redesigned the factory 
and expanded it beyond belief. Your job 
is to manipulate Pete through the multi- 
level factory’s obstacles and capture 
Stuart. 


Wida Software 
Wordpack ZX81 1 & 2 
16K RAM. Cassette: $9. 

Authoring system for word games: 1) 
Multiple choice test; odd man out. 2) 
Word test; Matchik. 


Wordpack ZX81 3 
16K RAM. Cassette: $10. 

Authoring system for word games. 1) 
Jackpot: word game based on one-armed 
bandit, useful for 3-way matching. 2) Lan- 
guage snap: player’s attempt to stop a 
changing display when two matching 
items appear. 


Wordpack ZX81 4 

16K RAM. Cassette: $10. 

Authoring system for word games. 1) 
Corssword: enter (and play) any square 
crossword and clues. 2) Anagrams: ran- 
domly generated anagrams (up to 40 
items) with verbal hints. 


M. Williams 
Guess My Number 
2K RAM. Listing: Send 3 íst class 
stamps. 

A game for 2 players. Uses names and 
keeps score. 


Bob Woish 
Mine Field 
2K RAM. Cassette: $3; listing: $1. 
You must locate and disarm the mine 
before it goes off. 


Day 
2K RAM. Cassette: $3; listing: $1. 

Enter the date and your computer out- 
puts the day of the week it fell on (or will 
fall on). 


Hi-or-Lo 
1K RAM. listing: $0.50. 
The classic “guess-my-number” game. 


2K Game Pack Special 
2K RAM. Cassette: $5.95. 

Includes: Compu-Pen, Galaxy, Sink the 
Sub, Mine Field, Hi-or-Lo, and Day. 


Zeta Software 
Scout Fighter 
16K RAM. Cassette: $17.45. 

An original Basic/machine language 
game. Features include 24-row screens, 
fast graphics, fuel and skill levels, throttle 


control, and stick-on custom keys. Joy- 
stick adaptable (with update). 


Space Games 


Abersoft 
Invaders 
16K RAM. Cassette: $9.95. 
Arcade type zap the aliens game. 


Brown Cottage Industries 
Star Search 
16K RAM. Cassette: $8.95. 

Space saga among the stars. Shoot 
down flying saucers, explore unknown 
worlds, locate and find your way through 
a ghost ship. Inverted graphics create 
night-time sky. 4-way scrolling, high speed 
Space travel, saucer shoots, continuous 
graphics, single key commands. ML. 


Bug-Byte Software 
Invaders 
16K RAM. Cassette: $10. 

MC version of famous arcade game. 
Shields are provided to help protect you 
from the bombs of the marching aliens. 
10 levels of play; from easy to suicidal. 
On screen scoring. 


Space Trek 
16K RAM. Cassette: $12. 
You trek across the galaxy in search of 


Do it all with 


WINKY BOARD II 


Cassette-Computer Interface 


J e and EVEN MORE! 
Va 


EASY TO USE. For ZX80/81, TS-1000 


$24. Assembled, $18. Kit, Earphone $1. 
POSTPAID in US & Canada. PA add 6%. 
FREE information on request. 


G. RUSSELL - ELECTRONICS 


RD 1 Box 539 


Centre Hall, PA 16828 


May/June 1983 


e DUPLICATE ANY TS/ZX CASSETTE 

e SAVE ON 2 CASSETTES AT ONCE 

e CUT RAM NOISE FOR CLEAN SAVES 

e FIND RIGHT LOAD VOL. INSTANTLY 

e EARPHONE-EAVESDROP ON LOADING 
e CUT LF NOISE FOR EASY LOADS 


actual 
size 


She 


23 
2-BIT™ SOFTWARE, P.O. Box 2036 
Dept. SN1, Del Mar, CA 92014: 
(619) 481-3629 


Games, continued... 


Klingons to zap with your phasers and 
photon torpedoes. You have long and 
short range scanners to help you find 
them, star bases for refueling, and witty 
comments from the crew. 


Spectral Invaders 
16K Spectrum. £5. 

Full-feature version of the popular 
arcade game. Uses hi-res color graphics 
and sound effects. The marching aliens 
speed up as the game progresses, making 
your task ever more difficult. All MC. 


Calliope Software 
Timeblasters 
16K RAM. Cassette: $12.95. 

Arcade quality graphics space battle. 
Almost 2K of machine code give unbe- 
lievable realism and speed. Six levels of 
difficulty. Money back if you are not 


happy. 


Cleva Computer Ware 
Starship Trojan/Princess of Kraal 
16K RAM. Cassette: $9.95. 

Starship Trojan: Pit your wits against 
the dangers of outer space and try to 
save your damaged space craft. Princess 
of Kraal: Face the monsters hiding in 
the underground complex to find the 
treasure and save the princess. 


Startrack/Fungaloids 
16K RAM. Cassette: $9.95. 

Startrack: Use graphic photon tor- 
pedo attacks to kill off the highly mobile 
klingons. Fungaloids: Save civilization 
by bombing the ever-multiplying fungus; 
beware, it fights back. 


Computer-Wear Software 

Attack Force 

16K RAM. Cassette: $11.95 plus $1.50 
s&h. 

You command a colony in hostile space 
via an armed mobile tank. The planet’s 
defense shields snap on. You are being 
invaded! Mobility, anti-matter rockets, 
shields and computer vs. photon torpe- 
does teleportation, and impact bombs. 
Can you hold off the invasion while plane- 
tary shields charge to full power? 


Starship Invasion 
16K RAM. Cassette: $11.95 plus $1.50 
s&h. 

You are the captain of the U.S.S. 
Entropy. Destroy 3 invisible enemy pho- 
ton torpedo batteries on a vital mining 
planet. You control fully-operational 
phasers, warp drive/shields. Realistic 
graphics and total mobility. Computer 
rates your starship abilities. 


Gladstone 
ZX Galaxia (Z72) 
16K RAM. Cassette: $14.95. 

Adaptation to ZX81 of the popular 
arcade game. You are being attacked in 
deep space by formations of hostile 
Galaxians, and your mission is to prevent 
them from attacking Earth by zapping 
them with your laser gun as they break 
out of formation and hurtle toward you. 


Galaxy Invaders (Z91) 
16K RAM. Cassette: $14.95. 

The classic space game. Protect your 
seven lives against fleets of hostile in- 
vaders who swoop down and attack 
quickly. 


Invaders (Z62) 
16K RAM. Cassette: $14.95. 

MC version of the famous arcade game. 
Shields are provided to help protect you 
from the bombs of the marching aliens. 
10 levels of play, from easy to suicidal. 
On screen scoring. 


Invasion Force (Z60) 
16K RAM. Cassette: $14.95. 

The huge mother ship hovers over your 
base raining missiles and bombs down on 
you. Blast through its force field and 
destroy it before it disintegrates you. Do 
not hit the reconstruction zones or all the 


TIMEX 
TS 1000 


SOFTWARE 


E FAST GAMES 


E UTILITIES 
E HOME 


SINCLAIR 


ZX8 | 


E EDUCATIONAL 


“AT LAST” ANNOUNCING a 


COMPLETE wav to a SECURE 


SAFE 


NO 
(WoBBLE 


PORTABLE UNIT. 
FEATURES: | 


BUILT IN - (HANDLE, RECORDER, SWITCH, 5” SCREEN AND 
HOOKUPS) YOUR Z81 OR T/S-1000 WILL LOCK IN PLACE 
WITH ACCESS FOR RAM AND PRINTER. A FUSE REGU- 
LATED CORD OPERATES ALL AND CONVERTS THE COM- 
PONENTS TO D.C. POWER FOR SMOOTHER OPERATION. 


E NEWSLETTER 


WRITE FOR FREE CATALOG SIZE: 1212” W 1812” D 9” H WTG. 10 LBS. 
PRICES: BASIC UNIT $259.00 
UNIT PLUS T/s- nn -eae $339.00 
UNIT PLUS 178-1000 PLUS 16K———_____ = $374.00 
Z-WEST UNIT PLUS T/S-1000+ 16K+T/S 2040 PRINTER --------- $464.00 


(POSTAGE PAID) SEND CHECK OR MONEY ORDER TO: 
EARL W. POWERS ASSOCIATES (619-421-7495) 

502 BERLAND WAY CHULA VISTA, CA 92011 

AT THIS PRICE NO OTHER OPTIONS OR (CREDIT CARDS) 
(U.S. ONLY) CALIF. RES. ADD 6% TAX. 


P.O. BOX 2411 
VISTA CA. 92083 


96 SYNC Magazine 


te a ppp a i a ek a ee eS Le SS Se ee i Oe ee 


damage you did to the mother ship is 
instantly rebuilt. MC action. 


Planet of Fear (Z79) 
16K RAM. Cassette: $14.95. 

You are stranded on an alien planet 
where you meet various hazards, in- 
cluding aliens, little green men, some 
natural, some not. Your aim is to escape 
the planet by finding your captured and 
disabled space ship. 


Alien Space Ship (Z81) 
16K RAM. Cassette: $14.95. 

While on reconnaissance in space, your 
ship has been drawn toward by a graviton 
beam towards an alien cruiser. Fred, your 
pet android, informs you that the cruiser 
is seeking out planets from which to take 
humanoid slaves whose brains are then 
replaced with micro-chips. Your aim is to 
escape alive, having broken the graviton 
hold. Fred will stay and assist you. Cas- 
sette routines to save the game at any 
stage. 


ZX Scramble (Z90) 
16K RAM. Cassette: $14.95. 

Pilot your spacecraft through a fast 
moving complex space maze. Watch out 
for missiles being fired from all directions. 
You can shoot back or evade them. MC 
action. 


Starquest (P12) 
16K RAM. Cassette: $14.95. 

You search the galaxy for a habitable 
planet for colonization, but discover that 
they are few. You do find a host of planets 
of great mineral wealth. You can be 
caught in the gravitational pull of massive 
black holes or come out of hyperspace 
beside a star about to go supernova. You 
run the gauntlet of vast meteor storms 
and are attacked by hostile aliens. If you 
survive all this, you are rewarded with a 
paradise planet, a New Earth. 


Zor (P13) 
16K RAM. Cassette: $14.95. 

In the style of a medieval joust, 2 
mighty robots join battle on a remote 
barren planet. Your energy shield is being 
eaten away by Zor’s onslaught. Can you 
think and fire fast enough to save your 
planet from enslavement? 


Encounter (P14) 
16K RAM. Cassette: $14.95. 

Another UFO sighting turns into a 
nightmare. Your curiosity and some un- 
known force draw you into a waiting 
spacecraft. Somewhere, light years away 
from Earth, you are probed and examined 
to determine your intelligence. If you fail, 
you will be jettisoned with the garbage, 
but, if you pass, you will be sent back to 
Earth. If you do extremely well, . . .? Now 
it is the Space Invaders turn to play you. 


May/June 1983 


Subspace Striker (P11) 
16K RAM. Cassette: $14.95. 

You are commander of the Swordfish, 
a subspace striker, the most feared class 
of attack craft in the galaxy. Your mission 
is to disrupt the Federation space lanes, 
to sever their vital supplies. You are likely 
to be attacked if you miss with your 
torpedoes, but even if you hit you must 
watch out. 


Graphicomp 
Space Asteroids 
16K RAM. Cassette: $14.95. 

Simulates one of the most popular ar- 
cade games around. Supports Mikro- 
graph Joystick. By Mikrogen. 


The Invaders 
16K RAM. Cassette: $14.95. 

Fast machine code program. Features 
the ability to fire while moving and very 


fast response to all key pressure. By 
Abersoft. 


ZX 1K Gamespack 
1K RAM. Cassette: $14.95. 

1K is not dull. Includes: Impact, Target, 
and Deathray. Does not support joystick. 
By Mikrogen. 


Hewson Consultants 

Specvaders 

16K ZX Spectrum. Cassette: £4.95. 
This is a space invaders type game. 

Features: 1) 3 lives. 2) Highest score to 

date. 3) Hall of fame. 4) 5 levels of play. 

5) Mother ship and extra aliens. 6) 

Descending asteroids (this new feature 

adds extra skill to the game). 


M. C. Hoffman Co. 

Lost in Space 

16K RAM. Cassette and manual: $11.95 
plus $1.50 s&h. 

Steer ship past meteors and enemy 
ships. Land on fuel ship for bonus. Status 
fuel and current score monitor. Moving 
graphics; _flicker-free. Auto-RUN. 
Prompts and more. 


Horizon Simulations 
The World of Sangrel (Voyager I) 
16K RAM. Cassette: $9.95. 

Your spacecraft has landed on a bar- 
baric planet in an attempt to save your 
own. Here you will meet more than 20 
different encounters. This can be used as 
a role-playing game adventure. 


Adventure to Korvas (Voyager II) 
16K RAM. Cassette: $9.95. 

Like the World of Sangre! but, you 
have a map display at the top of the 
screen. 


Deathship Sabotage 
16K RAM. Cassette: $9.95. 

You must stop the deathship before it 
reaches the earth in this new adventure. 


This adventure has a large vocabulary 
and over 80 rooms of ship to explore. 


Human Engineered Software 
2K Trek 
2K RAM. $12.95. 

A strategy game in distant galaxies. 
Command your starship against the 
Kutar Empire and save the United 
System. 


Integrated Data Systems 
Space Invaders 
16K RAM. Cassette: $11.76. 
For use with the graphics ROM. From 
Kayde. 


Intercomputer Inc. 
Return from Space (FG1001) 
16K RAM. Cassette: $12.95. 

Travel in the mysterious outer galazies 
and return from space after a long jour- 
ney. Your fuel supply is limited and you 
must reach earth and land in the net 
within 5 rounds. Use the control system 
of your spaceship to avoid hitting the 
stars. If a star is hit, you and your ship are 
destroyed. 


Just Games 
Appolo 
16K RAM. Cassette: $14.95. 

Red alert, red alert, enemy missiles 
approaching base. Man the missile station 
and blast the enemy out of the sky. Full 
defensive arsenal at your command. 


Crazy Comet 
16K RAM. Cassette: $9. 

Global defense mission: Code name: 
Crazy Comet. Cover the major cities of 
the world. Be on 24-hour alert for enemy 
planes and anti-aircraft weaponry. 


Kopak Creations, Inc. 
Alien 
16K RAM. Cassette: $14.95. 
You are on a space ship hunted by 
deadly aliens. Will you survive? 


Space Defender 
16K RAM. Cassette: $14.95. 

Defend your spaceship against the en- 
emy missile. 


Tailgunner 
16K RAM. Cassette: $14.95. 

You are in control of a giant space 
gun; you are always ready for an attack 
on star ships that dare to enter your 
sector. _ 


Star Trekker 
16K RAM. Cassette: $14.95. 

You are in command of a giant 
starship and a mission. 


97 


A SOFTWARE 
ALTERNATIVE TO 
HARDWARE MONITORS 


A Machine Code Program 
designed to VERIFY that the 
program you thought you 
saved is reloadable without 
having to clear the memory by 
reloading. EITHER embed 
VERIFY into important 


programs OR use as a 
programming aid. 


DOCUMENTATION INCLUDES 
e Full instructions for 
implementation 
Program listing $3.00 
Cassette $5.00 
16k+ required 
For ZX-81 and T/S 1000 
Computers 


WI residents add sales tax 


SPACE BREAKER 
P.O. Box 8104 
Green Bay, WI 
54308 


NEW 
WORLD 
CONCEPTS 


PULL LINE 
SINCLAIR SUPPLIER 


HARDWARE 
SOFTWARE 
SUMMER CAMP 


We wikk match or beat 
any retark prrace!l 


SENG: 35 FOR 
CATALOGUE 
(APPLICABLE TO PURCHASE) 


NEW WORLD CONCEPTS 
DEPT, C P.O, BOX 587 
OGDEN, UTAH 84402 
1 — 801 — 393-4819 


98 


Games, continued... 


The Lamb’s Software 

Armegon 

16K RAM. Cassette: $7.50; Listing: $2. 
You defend a space fortress against 

the Zardax invaders. You are permitted 

the use of up to five laser cannons, each 

with three shells. Invaders hit at longer 

ranges give higher scores. Running to- 

tals of shots, hits, score, and best score 

are kept. Invader strategy is selectable. 


Star City 
16K RAM. Cassette: $7.50; Listing: $2. 
As the pilot of an intercolony star 
cruiser, your mission is to fly through 
the colonies while logging as many light 
years as possible. Hindering your 
progress is the space junk of the colonies 
jettisoned dynamically into your path. 
The junk must be avoided by your 
cruiser or that excursion will be ended. 


Maranatha 
Rebel Raider 

Invade the Empire, defeat several 
UFOs with hopes of destroying Dark 
Faker in the Death S Station. 9 skill 
levels. 


Melbourne House Software, Inc. 
Combat Flight (14026M) 
16K RAM. Cassette: $14.95. 

You are the death-defying commander 
of a sturdy fighter ship, flying through 
dangerous mountainous terrain, while 
alien ships are coming after you to destroy 
you. Even if they do not get you, they 
may leave behind dangerous flak. You 
must avoid crashing into the mountains 
and flying too high. By Grenville Manuel. 


Space Trek (26446MY) 
16K RAM. Cassette: $14.95. 

You are in command of the Starship 
Endeavor and the Galaxy, made up of 64 
sectors, is being invaded by Drakons. 
Your mission is to seek them out and 
destroy them before time and fuel run 
out. 5 skill levels. By Neil Streeter. 


Super Invasion (26359MY) 
1K RAM. Cassette: $14.95. 

Cruel and crafty invaders have been 
spotted in battle formation ready to attack 
your ship just below them. You must shift 
quickly and skillfully from left to right as 
you return their fire, but be careful 
because they are accurate. 3 skill levels. 
By Beam Software. 


Gamestape No. 5: 3-D Orbiter 
(13945MY) 
16K RAM. Cassette: $14.95. 

You have to save your home planet 
from the marauding alien spacecraft. 
Your view screen shows you in 3-D the 
view out your fighter cockpit window. 
The background moves when you turn or 
fly up or down, just as if you were really 


flying it. But then, you are. The enemy 
craft will actually zoom towards you and 
shoot at you if you let them. By J. K. 
Greye. 


Mill Research 
ML Raiders 
16K RAM. $4.95. 

Similar to the game on larger com- 
puters, you must line up the approaching 
ship before he opens fire and then fry him 
with your lasers. At first one of three 
different spacecraft comes into view in 
the distance. As it gets closer it becomes 
larger and increases in detail, giving a 3-D 
effect. Machine code. 


Mindware Inc. 
From Eagle Sales 
Cosmos 
16K RAM. Cassette: $15.95 plus s&h. 
Convoy in distress. As you send your 
advanced class starship through hyper- 
space, you learn that vicious aliens are 
attacking an unarmed space convoy. Use 
your laser guns to blast at the enemy, but 
they fight back with space mines that can 
penetrate your force field. Excellent 
graphics and fast paced. By Vortex 
Systems. 


Savage Software 
Space Trek 
16K RAM. Cassette: $14.95. 

The enterprising captain of the starship 
is out to destroy the fleet of klingons. 
You have limited energy and torpedos 
for the battle. Energy is used by your 
shield for protection. Radar scan printout 
available. The enemy is aggressive, so 
beware. 


The Software House 
Voyage Z 
16K RAM. Cassette: $6.50. 
Guide your craft across the galaxy to 
save the Bimbos. 


Softsync, Inc. 
Mothership 
16K RAM. Cassette: $16.95. 

Simulates 3-D graphics, one or two 
players option, on screen scoring and 
plays like no other game you have seen. 
Drones are pouring down the Zarway, all 
around you firing deadly lasers. Maneuver 
to dodge them. Knock off ten and you 
get a clear shot at the Mothership. 


Meteorites 
16K RAM. Cassette: $14.95. 

Long range scanners pick up a vast belt 
of asteroids drifting on the fringes of the 
Star System Nolveg I. Suddenly they are 
upon you. You dodge, swerve, and fire 
laser beams at them. On screen: six mis- 
sles firing in eight directions, wrap around 
screen. Two sizes of asteroids, scoring 
and ship count, complete mobility and 
bonus ship. (Licensed from Quicksilva.) 


SYNC Magazine 


Red Alert 
16K RAM. Cassette: $14.95. 

Scramble into your ship, check the 
computer for status. You have plenty of 
fuel, bombs, and missiles. Then you are 
in the air, dodging on-coming aliens, and 
skimming above menacing mountains. 
You score points for destroying alien 
ships, fuel dumps, and enemy missiles. 
Fast action machine code game of the 
arcade type; requires agile skills. 
(Licensed from Quicksilva.) 


Softsync, Inc. 
Space Commando 
16K RAM. Cassette: $14.95. 

In this challenging adventure game, the 
amalgamation of friendly planets has com- 
missioned you to infiltrate Zircon 12, a 
space colony overtaken by Renegade 
Androids. You must penetrate the alien 
security forces and render them defense- 
less so the Space Fleet can land. 


Space Raid/TS Destroyer 
2K RAM. Cassette: $14.95. 

Two fast moving graphics games, 
written in Machine Code for the unex- 
panded TS1000. Available on one cas- 
sette. Space Raid: With five laser bases, 
you fire away at the giant alien spaceship 
until you hit the alien where it really 
hurts; 10 levels of play. TS Destroyer: 
On enemy turf you shoot the enemy war- 
ships while avoiding guided missiles and 
meteors; 30 levels of play. 


Software Development Associates 
Deep Space 
16K RAM. Cassette: $5.95. 

You control a space ship whose mis- 
sion it is to find and destroy enemy 
invaders within a section of space to 
which you have been assigned. 


THM Software 
Z.S.S. Sinclair, Cold Shutdown 
16K RAM. Cassette: $12.95 pp. 

You are the sole surviving member of 
the crew of the Zoological Survey Ship 
Sinclair. You awaken from stasis only to 
find the alien specimens roaming the 
ship and a cold shutdown of the ships re- 
actor only hours away! You must fight 
off the creatures and repair the ship be 
fore time runs out. 33 pods, unlimited 
aliens, tools, etc. Screen Display. 


Timeworks, Inc. 
Scyon's Revenge. (1207). 
16K RAM. Cassette: $19.95. 

From the command deck of the Star- 
ship Columbia you flash through space as 
hundreds of stars appear ahead of you 
and part before you. The infamous Scyons 
are again crossing the Galaxy, and you 
must stop them at all costs. You have 3 
onboard navigational systems, new super- 
charged phasers, hyper warp drive, and 


May/June 1983 


SYNERGICS 
UNCIMNTED 


PRESENTS USER-FRIENDLY HOME UTILITY 
PROGRAMS FOR YOUR ZX81/TS1000 


NUTRIFILE | & 11 (146K/64K) 

Develop your own recipe file and access recipe by name, 
meal or type of dish. Adjust ingredients for different 
number of servings. Develop menu plans and grocery 
lists. 


NUTRIFILE 1 (16K) Handles 30 recipies $12.50 


NUTRIFILE Il (64K) Handles 120 Recipies and 
contains additional nutritional data for menu planning. 
$14.00 


HEALTHFILE (16K/64K) 

Maintain family health records. Keep track of family birth 
data, heights, weights, immunization, illnesses and other 
health data. File space for doctors and hospitals. Also 
basic First Aid and Poison Contral data. Program allows 
user-friendly expansion to 64K. $10.50 


CALENDARFILE (16K/64K) 

Establish your own databank of appointments, remin- 
ders important dates and recurring events. Access data 
by month, date, subject or keywords. Program allows 
user-friendly expansion to 64K $12.50 


CA Residents Add 6% Sales Tax 
Add $1.50 For Postage & Handling 


Send Check or Money Order To: 
SYNERGICS UNLIMITED 
Suite 101 
3377 California Blvd. 
Napa, CA 94558 


FOR THE 16K TS-1000/ZX-81 


NOW] Zeontnyo 


TWO OR MORE 
BASIC 
PROGRAMS 


WITH THE PROGRAM 


LODAB 


YOU WILL 
e MERGE BASIC PROGRAMS 
e RENUMBER LINES 


e READ A PROGRAM 
MEMORY CHART 


LODAB comes to you on a quality tape 
and is guaranteed to load. LODAB is written 
entirely in machine code. A user's manual is 
included, and several useful Basic Subroutines 
are listed. 

And for easy instruction, LODAB is 


accompanied by a full demonstration program. 


To order a copy of LODAB, send a 
personal check or money order 
for $12.00 to 


The Ultimate Blackwood 
P.O. Box 7427 Santa Cruz, CA 95061 


This price includes shipping & handling. 
California Residents add 61⁄2% sales tax. 


BACK ISSUES OF 
SUNE 


Add to your Sync collection today, while 
copies are still available. The more com- 
plete your library of back issues, the more 
authoritative and useful it will be to you. 

You may order any issues published 
during the last twelve months, being sure 
to specify the month and year for each. If 
a particular issue is out of stock, your 
payment will be refunded promptly. 

Back issues of Sync are priced at 
$4.00 each, postpaid. Outside the U.S.A., 
$5.00 each. 


P.O. Box 555, Morris Piains, NJ 07950 
Please send volumes of Sync listed below: 


Total Price 


PAYMENT ENCLOSED $_________.. (CA, NJ and NY 
STATE residents add applicable sales tax.) 

Mr. 

Mrs. 

Ms. 


(please print full name) 


Games, continued... 
the most advanced tracking/view system 
in the Star Fleet. 


Star Battle. (1202). 
16K RAM. Cassette: $16.95. 

As captain of the Starship Columbia, 
you must save Earth from the infamous 
Scyons. Your ship is equipped with warp 
and hyper light drive, phasers, and photon 
torpedoes. Their capabilities are reduced 
each time your ship is hit by enemy fire. 
Can you stop the enemy cruiser before 
the Scyons plunder Earth? Action and 
thinking game (not just move and shoot) 
with eight different commands and full 
graphics. 


Michael B. Williams 
Z-Trek 1000 
16K RAM. Cassette: $9.95. 

Battle as many as 200 highly mobile 
Zylons with your powerful starship, the 
Sinclair. Full screen display (24 lines) with 
scrolling and ML routines. 8 commands 
including 360 degree navigation, probe, 
and torpedos. Display shows quadrant, 
status, and galactic map. 


Bob Woish 
Galaxy 
2K RAM. Cassette: $3; listing: $1. 
As you zoom through space, a number 
of galaxies are encountered. You must 


accurately report the number of stars in 
each before it disappears in order to 
succeed. An absolutely addictive graphics 
game. 


ZX-Guaranteed 
Space Invaders 
4K RAM minimum. $12. 

Machine code version of space invad- 
ers with on screen scoring, bonus 
mothership, etc. 

NOTE: Special offer to Sync readers 
only: both games on one cassette: $20. 


Mazes, Dungeons, 


Castles 

Abersoft 

Mazeman 

16K RAM. Cassette: $9.95. 
Arcade type maze chase game. 


Banta Software 
Back ’em in Monzxer 
16K RAM. Cassette: $6.95. 

One player, moving graphics; travel 
through a maze chomping down dots 
while avoiding goblins, automatically 
keeps highest current score. 


Supermonzxer 
16K RAM. Cassette: $6.95. 

Our original adventure game; use 
information given to you by the com- 


puter to travel through a complex cave 
network killing ““Monzxers” and avoid- 
ing dangers. 


Bob Brown 
Maze Man 
16K RAM. Cassette: $5. SASE for infor- 
mation. 

You are pursued by four ghosts in a 
maze chase. Score by eating stars and 
dollar signs. Machine code. 


Brown Cottage Industries 
Krok 
16K RAM. Cassette: $8.95. 

Fast action maze game. Intelligent croc- 
odiles (kroks) pursue you through 140 
rooms and a 35 room basement in your 
quest for gold and other treasures, includ- 
ing a sword to kill the kroks. Monkeys, 
snakes, bats, spiders as well as kroks 
attack. Single key instant commands; 3 
speeds; ML. 


Krok 2K 
2K RAM. Cassette: $6.95. 

Limited version of Krok for TS1000 
without RAM pack. Includes pursuit by 
kroks through a maze. 


Bronze Star Software 
ET. 
16K RAM. Cassette: $7. 
A hidden maze game. You are placed 


SOUND with SINCLAIR 


MAKE AMAZING SOUND EFFECTS 
WITH YOUR ZX 81, TIMEX 
Sinclair 1000 or SPECTRUM 


THE ZON x81 $49.95 


el ə The ZONX SOUND UNIT is completely self-contained and especially 


designed for use with the ZX 81, TIMEX Sinclair 1000 and Spectrum 
Computers. It just plugs in — no dismantling or soldering. 


e No power pack, batteries, leads or other extras.* 


t . 
D e e Manual Volume Control on panel — ample volume from built-in Ioud- 
speaker. 


- e Standard Sinclair — 16K Rampack or printer can be plugged into ZONX 
Sound Unit without affecting normal computer operation. 


e Huge range of possible sounds for Games, Music, Helicopters, Sci-Fi. 
Space Invaders, Explosions, Gun-shots, Drums, Planes, Lasers, Or- 
gans, Bells, Tunes, Chords, etc., or whatever you devise! 


e 8 full octaves. Uses 3-Channel sound chip giving programme control of 
pitch, volume of tones and noise, all with envelope control. 


e Easily added to existing games or programs using a few simple 
“BASIC” lines or machine code. 


e No memory addresses used — |.0. mapped. 


= FULL instructions with many examples of how to obtain effects and 
N the programmes, supplied. Fully guaranteed. British Made. 


*Except with Spectrum, you need the Spectrum Extension Board Order 
No. SE1 - PRICE $10.95 inc. 


Payment may be made by Cheque, P.O. 
Giro No. 388 7006, Postal Order or Credit 
Card. 


Export orders:- Bank Cheque, Interna- 
tional Money Order. U.S. * or £ Sterling. 


Dept. CG, P.0. Box 6 
Ware, Herts 
England 


100 


VISA accepted 
Ring 0920 3182 for 
immediate despatch. 


TIMEX 1000 
$59.95' 


BUISITES 
Budgeting .ecooecocoecooo 38.95 
Inventory Control «coeces $8.95 
Financial Analyzer eooeece 38.95 
Stock Analyzer eececceeceoe 38.95 
GAMES 
Leap Frog coerce eeeeeeeee $9.95 
star Vovage eeoececceoceeesses $9.95 
Fungaloids eoececeeeseece $9.95 
Invaders ceveocccccecvcccccs 38.95 
CheSS ecceoceccecccveccvccesee $38.95 
Snakebite eoeeoevceceeseseceeo $9.95 
Packtan ceccccccvcccceveccecs $8.95 
UTILITY 
Assembler wTerer ee & ee ee $9.95 
Disassecbler cececccccevece $9.95 
Compiler TREE Eee $9.95 
Graph eoecececerereesere eee $9.95 


AND MANY MORE EXCITING PROGRAMS 


*You have to buy three software from us. 
CALL FOR FREE CATALOG 


DISCOUNT SOFTWARE, INC. 


320 East 59tn St. New York, N.Y. 10022 
Tel: (212)486-0980 


Mei Tear cheat ee ee EE E R UASA a E E E ANE 


at the edge of a thick forest (a randomly 
generated maze). Seeing only in front, 
behind, and to both sides, you must avoid 
the FBI agents who are after you and get 
ZT home. First in a series of strategy 
games that challenge the player’s mind, 
not his index finger. 


Bug-Byte Software 
Mazogs | 
16K RAM. Cassette: $22. 

A maze adventure game with fast mov- 
ing animated graphics. You must escape 
the maze with the treasure while fighting 
off the Mazogs, the creatures who live in 
the maze and are out to get you. 3 levels 
of difficulty. 


Computer-Wear Software 

Maze 

16K RAM. Cassette: $11.95 plus $1.50 
s&h. 

A maze game totally different from 
other maze games because strategy 
counts. You are trapped in a series of 
invisible mazes, each progressively 
harder. Armed with 3 magic weapons, 
you must solve each maze before air runs 
out. 


Daw Software 
Maze 
16K RAM. Cassette: $9.95. 


You are trapped in a randomly cre- 


ated maze. By finding and using a large 
variety of items, you can escape through 
the secret passage, but be careful of 
monsters in the maze. An animated 
screen displays all the action. Each game 
is a new experience with a new maze. 


Dem Co. 
16K RAM. Cassette: $9.95. 

A 3-D maze game; 4 play options; 9 
levels; move count; challenge mode. 
Prompts with single key entry. Maze gen- 
eration is random. MC and Basic. 


Charles Drury 
Marbles, Mazes and Sink Holes 
16K RAM. Cassette: $16. 

Simple, logical, non-destructive family 
game simulating hand held mazes. 15 
levels each with 4 variations give 60 full- 
size playing screens; from very easy to 
extremely difficult. All machine code. 
Automatic clock and time limit enforce- 
ment. 


Gladstone 
3-D Monster Maze (B78) 
16K RAM. Cassette: $14.95. 

Find your way through the maze. The 
exit is there somewhere, but so is T. REX. 
MC action. 


Catacombs (B77) 
16K RAM. Cassette: $14.95. 

A multilevel graphics adventure game. 
Fach level can have up to 9 rooms, 8 
passages, 7 monsters, food, gold, traps, 
phantoms, and an exit (to the next level). 
And the number of levels is unlimited. 


Gobbleman (Z70) 
16K RAM. Cassette: $14.95. 

You are being chased in a maze by 
ghosts. If you can eat some magic food, 
you have a chance of stopping the ghosts. 
Personalized high score feature. MC 
action. 


Sword of Peace and Zombies (Z74) 
16K RAM. Cassette: $14.95. 

Sword of Peace: Free yourself from a 
dungeon to prove yourself worthy of be- 
coming the Monarch of Oz. Zombies: 
Stranded on an island, your only hope to 
avoid the zombies is to lure them into 
potholes. 


Graphicomp 
Paint Maze 
16K RAM. Cassette: $14.95. 

The eat your way through the maze 
game with a variety of different screens. 
Your path is painted in behind you to 
keep track of where you have been. Sup- 
ports Mikro-graph Joystick. By 
Mikrogen. 


New Book 


GENERAL SYSTEMS CONSULTING 


2312 Rolling Rock Drive 
Conley, Georgia 30027 


CASSETTE SOFTWARE TIMEX SINCLAIR 


vic 20 


3 SINCLAIR ZX81 
TIMEX SINCLAIR 1000 Syl 
Mio sase dea COMMODORE VIC20 = 


DESIGNED TO HELP MONITOR YOUR FINANCES 
16K MINIMUM FOR T/S 1000 & ZX81 


* At least 3K expansion 
** At least 8K expansion 


AMORTIZATIONS 


ORO cs 2 eee | 
CANNUMTY EVALUATION | ms 
PILE MANAGER S en Sac te ee of 1S 8 
| DEPRECIATION STRAIGHT LINE | 1295 | 1395 | 
|DEPRECIATIONACRS | as 15.958 | 
|HOMEINVENTORY č č ç | n2% | u% | 
HOME EQUITY EVALUATION ea ee 
REAL ESTATE INVESTING | 13.95 | 14.95% | 
| SAVINGS INVESTMENT ANALYSIS | 13.95 | 14.95** 
|IRS104(0LONG FORM. = C m as] jiem 
| IRS 1040A SHORT FORM & 1940 EZ | 14.95 | 15.95** | 


INCOME TAX PROJECTIONS 
IRA ANALYSIS 


: 
> 


NAME 2002 oe a A POTAL YOUR PRICE 
ADDRESS ——— — — — — ——7 | POSTAGE/HANDLING 
CHY STATE a O a oe A TOTAL PRICE 


May/June 1983 


Sinclair ZX81/Timex Sinclair 1000 Statistics: 
Twelve 16k Programs Including Multi- 
Factor Analysis of Variance 


by A.H. Wolach and M.A. McHale 


Turn your Sinclair 2X81/Timex Sinclair 1000 uter into 
performing statistical analyses. mein @ powerful tool for 


This 200 programs. 


Each 

A erie example of 
: All programs use 
insure accurate 

sets can handled 


Ae Independent groups t-test to compare means for two groups, F-test to 
compare variances for two proves. 
Correlated measures t-test to compare means for two treatments, t- 
test to compare variances for two groups, Pearson product moment 
Completely” randecizey i design or ind 
ompletely ra z grou s or independent oups one-wa 
ana pi of uur ianee (ocb nob require equal Re for 211 groups). $ 
Completely randomized factorial J by K design or independent oups 
aaay analysis of variance (equal n not required in subgroups). 
e al J by eSign or independent 
lysis of variance (equal n not required). 
p or independent, groups one-way 
ual n in eac 


1) 


or 
vat n 
th K t 


i (reg 
actorial J by K des 
requires equal n iñ all cells). 
ed block factorial J by K cn (requires equal n) 


i 


=O O WON AW FW 
Ce a, ae, oe a a a |e Saar 


+t 


Completely randomized factorial J by K by sign, or independent 
gops three-way mersis of variance (equal n in all Subgroups) . 
li as factorial J by K by L design with L the repeated measures 
actor (requires equal n in all cells). 


d 
N 


All rams ovide_means for grou subgrou or cells. 
for each siibaronp is also provided. PRs BOREL ONS 


Order the complete book for $11.00. Complete program listings are 
included. If you do not want to enter the programs by hand we can’ l 

them on cassette for $1.50 per i ews or 375-00 or all 12 programs. 
Cassettes do not have to be ordered n the book is purchased. We include 
a form for ordering any or all of the cassettes. 


KDVHE. Publishers nclose check for $11.00. 
PO. Box 6788 butsige USA add $3.00 per order. 


: i f not satisfied return within 30 
Chicago, Illinois 606 80 


The variance 


days for full refund. 


101 


Games, continued... 


P. Hargrave 
Dragon Hunt 
16K RAM. Cassette: $12.50. 

A maze game played in Dragon Caves 
where you must find and slay three 
fierce dragons with your few arrows, and 
then try to get out. Dangers include 
snakes, giant bats, and the ghastly mon- 
ster. A magic sword will help you if you 
can find it. Fast decision entry. 


Hewson Consultants 
Maze Chase 
16K and 48K Spectrum. Cassette: £4.95. 
A fast arcade style game: You guide a 
humanoid around a maze. There is food 
in the maze which the humanoid has to 
eat and on this the scoring is based. 
Other items in the maze: 1) Guardians, 
these move around the maze trying to 
prevent the humanoid eating the food by 
eating it. 2) Lemons, these score extra 
points. 3) Magic strawberries, when the 
humanoid eats one of these it can attack 
the guardians and force them back to 
their cage. The humanoid has three lives 
per game. Four mazes with the 16K ver- 
sion, and 8 with 48K. 


Puckman 
16K RAM. Cassette: £5.95. 
Puckman is a fast arcade style game. 


You guide the humanoid around the 
maze scoring points by eating the food in 
the maze. 4 guardians controlled by the 
computer try to prevent the humanoid 
eating the food by eating him. Magic 
strawberries are littered around the 
maze and eating these allows the 
humanoid to chase and eat the guardians 
causing them to return to their cell in 
the middle of the maze. 


Human Engineered Software 
Sabotage 
16K RAM. $14.95. 
A maze adventure requiring advanced 
planning and fast reflexes. 


Intercomputer Inc. 
Maze Drag Race (FG1015) 
16K RAM. Cassette: $12.95. 

You are speeding in a racing car 
through a maze nine times the size of the 
TV Screen. You can drive in four dif- 
ferent directions. Score points as you go, 
but watch for other attacking cars, oily 
and icy roads, and rocks in your way. 


J.L.K. Software 

The Labyrinth of Qazx1 

16K RAM. Cassette: $15 U.S.; $18 Can. 
Combination graphics-text role playing 

adventure game. Explore the multilevel 

dungeon while fighting different monsters 


and collecting different treasures. Draws 
a map of what you see. The longer you 
live, the stronger you get. 


Just Games 
Frantic 
16K RAM. Cassette: $9. 

You have entered an unexplored lab- 
yrinth where just to touch the electrified 
walls could prove fatal. You are not alone 
because Evil Otis and his band of faceless 
robots are out to destroy you. Your only 
hope is to blast them first. 


The Lamb’s Software 
Eureka 
16K RAM. Cassette: $7.50; Listing: $2. 
A graphic hidden-maze style of game 
where you search for the path to the 
treasures. Points are awarded for each 
treasure you reach. A game clock, trea- 
sure time, and total points are kept. 
Difficulty increases as you improve. For 
each treasure you must choose whether 
to take a known route or to attempt a 
new path. 


Melbourne House Software, Inc. 
Gamestape No. 4: 3D Monster Maze 
(13944MY) 

Can you find your way through the 
maze? The exit is there somewhere, but 
then so is T. Rex and it is after you. 3-D 


ScreenMate 


ScreenMate’s Lightpen and InterFace for the Atari® Joystick 


adds versatility to your ZX81 or TS1000. 


e Play Action Games 

e Direct Interaction with 
the Monitor Screen. 

e Features a ‘‘Piggy-back’”’ 
Add On Feedthrough 

e Draw and Doodle 

e Ideal for Educational 
Programs 


$49.95 includes 


e Lightpen with Joystick Interface 
e Program Listings ¢ 30 Day Limited Warranty 
e All Postage and Handling 


To Order Clip and Send Coupon 


O Check O Money Order 
O Visa (©) MasterCard # 
Exp. Date 


Signature 


Please Print 
Name 


Address 


City State 


Interface Innovations 
4372 Casa Brazilia, Suite 201, St. Louis, Mo. 63129 


l You are a member of the Zoological Survey Ship Sinclair. So far you 


r Ea a 


| 
Z.S.S. SINCLAIR 


COLD SHUTDOWN... 


Orders only call (314) 968-6593 


102 


have had a very sucessful mission, you collected many specimens on 
many strange worlds. Many dangerous specimens. It was time to go 
home. Everything went fine, coordinates were set, computer activated 
and you along with the rest of the crew entered the Stasispod for a long 
sleep. Two months later the ship encountered an intense electro- 
magnetic pulse. You awaken not to find yourself in orbit above Earth, 
but in deep space. The life support units of the other crew members 
have malfunctioned. But you are not alone, the specimens are loose! 
Awakening earlier than planned, you are left weakened and 
disoriented. The ship is laid out in the form of three wings composed of 
modular units called Pods. Funny thing, but you can’t remember where 
any of them are located. The creatures have managed to scatter the 
equipment you need to help you Survive and repair the ship. The reac- 
tor is getting cold and you have to repair the five major Pods 
(COMPUTERPOD, CONTROLPOD, NAVIGATIONPOD, FUSIONPOD, 
LIFESUPPORTPOD), before it goes into COLD SHUTDOWN... 


* VERY USER FRIENDLY x 33 PODS RANDOMLY PLACED 

* EVERY GAME DIFFERENT x OVER THIRTY CREATURES 

* EIGHT TOOLS AND DROIDS x 30 min - 1 hr. PLAYING TIME 

x GRAPHIC DISPLAY OF SHIP, YOUR POSITION, SYSTEM STATUS 

* TWO WAYS TO WIN: RESTART SHIP OR TAKE OFF ON 
ESCAPECRAFT PHOENIX 


8k ROM 16k RAM Supplied on cassette with instructions. 
$12.95 postpaid Money Order or Check Made Payable to: 


T.H. McCOMB. 


THM SOFTWARE 154 Laconia Avenue, Staten Island, New York 10305 


x x DEALERS ENQUIRIES INVITED * x 


| 
| 
í 
| 
| 
| 
| 
| 
| 
| 
| 
| 
f 
i 
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| 


SYNC Magazine 


anes 


graphics create the passageways and the 
movement of T. Rex toward you. By J. K. 
Greye. 


Gamestape No. 3:Catacombs 
(13943MY) 
16K RAM. Cassette: $14.95. 

A multi-level graphics adventure that is 
not limited in its scope. Each level con- 
tains up to 9 rooms, 8 passages, monsters, 
food, gold traps, phantoms. The number 
of levels is infinite. By J. K. Greye. 


Mill Research 
Pakguy 
16K RAM. $4.95. 

Beware of goblins as you move through 
this full screen maze, gobbling up dots for 
points. If you eat a power capsule, you 
can chomp on the goblins and gain extra 
points. With three skill levels. 


Keltinor’s Keep 
16K RAM. $6.95. 

Dare to challenge this mysterious 
castle, and you are in for a perilous ad- 
venture. The keep is made up randomly 
of 20 rooms and 2 levels. Various trea- 
sures and weapons are in the rooms you 
search, along with monsters and obstacles 
which block your way. The computer 
gives a detailed description of each room 
and accepts many varied commands. 


Mindware Inc. 
From Eagle Sales 
Labyrinth 
16K RAM. Cassette: $15.95 plus s&h. 
Pick your maze; from small and simple 
to complex. The maze is displayed for a 
few minutes to let you memorize your 
way through. Then the maze vanishes 
and you have to find your way just as if 
you were stuck in a maze. If you get lost, 
signal for help and the computer will 
display the maze plan with your position. 
When you finish, you get a replay of your 
route. By Axis 1981. 


Gulp 
16K RAM. Cassette: $15.95 plus s&h. 
Fast paced game of chase and escape. 
Dash through 5 different mazes; pick up 
points by gulping food along the way. But 
you share the maze with the hungry ogre, 
and he is out to gulp you. The more you 
eat, the angrier he gets, and the faster he 
will chase you. Nine speeds and difficulty 
levels. By Campbell Systems. 


Pleasantrees Programming 
3-D Worm Maze 
16K RAM. Cassette: $12.95 plus $1.50 
s&h. | 

You attempt to net animated worms 
loose in corridors of seemingly endless 
identical boxes. You must put each in an 
empty box. Most boxes already contain a 


worm which escapes upon checking. By 
memorization you gradually put all away. 
Each game different. 


Softsync, Inc. 
Mazogs 
16K RAM. Cassette: $19.95. 

The cleverest, most elaborate graphic 
game. You enter a large and complex 
maze which contains a fabulous treasure. 
But also inside the maze are fearsome 
Mazogs. The program draws a different 
maze for each mission and places in it the 
Mazogs, the Mazogs’ prisoners, some 
handy swords, and the treasure. (Licensed 
from Bug-Byte.) 


Syber, Inc. 
Dragon Lair 
16K RAM. Cassette: $15.95. 

A fantasy role playing adventure in a 
multi-level cavern. Complete with mon- 
sters, wizards, magic, and spells; vari- 
able levels of difficulty; optional sound 
available. 


Timeworks, Inc. l 
Dungeon of the Algebra Dragons. (1102). 
16K RAM. Cassette: $16.95. 

You must escape from the infamous 
Dungeon of the Algebra Dragons. You 
need to find the two magic keys. When a 
dragon finds you, he will give you an 
algebra problem to solve. He will add to 


MICROSYSTEMS SPECIALISTS, INC. 


Announces 


The Latest Breakthrough 


ANALYSIS 


in ZX81/TS1000 Software 


HSS ™-Backup $14.95 


e Make backup cassettes of your favorite 


programs! 


e Requires only one tape recorder! 


e Makes multiple copies! 
e Simple to use! 


uSS™-Pilot $29.95 


e Excellent introductory language for children 


and beginners! 


e Easy to use—no prior computer experience 


necessary! 


No HOCUS POCUS Charting involved! 
daily, weekly or even monthly! With ANALYSIS and your 16K ZX- 

81/TS-1000 you can make sound BUY/HOLD/SELL investment decisions 
at your convenience. 
able in your newspaper and at your local library. 
your ZX-81/TS-1000 provide you with a decision support tool 


STOCK SELECTION GUIDANCE 


Now Available! 


Fundamental Stock Analysis 
No requirement to update data 


ANALYSIS uses information readily avail- 
ANALYSIS and 


equivalent to those used by professional investment advisors. 


Fundamental Analysis centers about the premise that a 
security's price performance is dependent upon its expected fu- 
ture earnings growth. 


ANALYSIS projects compounded earnings 


growth based on historical data using LINEAR REGRESSION tech- 


niques. 


A security's present price is compared to price ranges 


based on projected earnings. An Upward/Downward movement ratio 
as well as a BUY/HOLD/SELL recommendation is provided as out- 


put e 


Tutorial $17.95). 


e Pilot features one character commands! 


e Includes line editor, tutorial and sample pro- 


grams! 


Call TOLL FREE: 1-800-227-1617 Ext. 157 
in California: 1-800-772-3545 Ext. 157 
OR send check or money order to: 
Microsystems Specialists, Inc. 

P.O. Box 733, Adelphi, Md. 20783 


Add $2.00 shipping and handling for first cassette, 
$1.00 each additional item. Maryland residents add 
5% sales tax. Overseas orders add $3.00. 


May/June 1983 


YOU CANNOT AFFORD TO BE WITHOUT THIS TOOL! (Tape and 


PORTFOLIO 


Investment Portfolio 


with your ZX-8 1/TS-1000 (16K) 


Performance Analysis, File Management Capabilities 


PORTFOLIO provides a powerful tool that transforms your 16K ZX- 


81/TS-1000 into a sophisticated Investment Data Bank. 
stocks, bonds, mutual funds. 


shares, cost, and set selling price targets. 


securities. 


ment portfolio. 


ORION'S BELT Enterprises 
07 N. Fairway Road 
PA 19038 


Glenside, 


Track 
Maintain accurate records of # 
Tracks up to 50 


MENU-driven record management capabilities to ADD, 
CHANGE, DELETE or DISPLAY selected records. 
the entire file, one record at a time, viewing tableaus of 
security attributes including value, cost and percentage gain. 
MENU-driven file management capabilities allow you to input cur- 
rent market prices and recalculate overall portfolio performance 
and individual security performance as well. 
file contents to and from cassette. 


Automatically list 


Save and Restore 


A MUST for any ZX-81/TS-1000 owner who maintains an invest- 
(Tape and Tutorial $15.95) 


Send check, money order to: 


(Add $1.00 postage and handling 
per cassette; PA residents add 


67” sales tax) 103 


Games, continued... 


your gold reserves if you are correct, or 
take some of your gold if you are wrong. 
When your gold is gone, he will have you 
for supper. On your journey through the 
Dungeon, you will also be confronted by 
poisonous spiders, dwarfs, trap-doors, and 
other surprises. 


Cave of the Word Wizard. (1103). 
16K RAM. Cassette: $16.95. 

On a routine mineral survey of the 
Planet Spolig you stumble into a mys- 
terious unexplored cave. If your oxygen 
runs out, you will join the Wizard’s bone 
collection. The Wizard will confront you 
and give you a word. You must determine 
if it is spelled correctly or not. When you 
are right, the Wizard gives you more 
oxygen, but beware for he has many chal- 
lenges and obstacles for you. 3-D graph- 
ics, 3 skill levels, ages 10/up. 


Timeworks, Inc. 
Robber of the Lost Tomb. (1203). 
16K RAM. Cassette: $14.95. 

As a special archeological consultant 
to the CIA, your mission is to recover 
four sacred tablets from a lost 100-room 
tomb in Egypt. Inside the tomb you will 
be confronted by snakes, ghosts, bottom- 
less pits, and mummies, with only deter- 


mination and cleverness to make your 
mission a success. 3-D graphics, ten skill 
levels. Game can be saved and continued 
later. = 


T-S Systems 
Escaping the Maze 
16/48K TS2000. Listing: $3 plus large 
SASE: _ 

Challenge your ability to escape the 
maze. 


Graph with Submarine 
16/48K TS2000. Listing: $6 plus large 
SASE. 

Steer the submarine through a narrow 
channel with the left and right cursor 
keys. 


Adventure Games 


Abersoft 
Adventure 1 
16K RAM. Cassette: $19.95. 
Classic textual adventure with 140 lo- 
cations & large vocabulary. 


Bug-Byte Software 
The Damsel and the Beast 
16K RAM. Cassette: $15. 

An adventure game of concentration 
and suspense. You wander in the darkness 
dangers of the beast’s palace to find the 


Damsel hiding or imprisoned there, kill 
the Beast, get the Damsel out of the 
palace before she starves to death. 


Daw Software 
16K RAM. Cassette: $9.95. 


A graphically animated adventure 


game. Test your skill and luck fighting 
many different kinds of monsters in a 
crypt. A bandit infested road separates 
the crypt from the safe town. As you de- 
feat monsters and bandits, you will gain 
power and confront the more challeng- 
ing monsters. 


Haymarket Software 
Ring of the Goddess (pt. 1) 
16K RAM. Cassette: $12.95. 

This adventure game could take you 
up to 40 hours to complete. You must 
find the ring of the Goddess, rescue the 
girl, defeat a witch and keep an evil wiz- 
ard from getting the ring. There are sev- 
eral problems you must overcome and 
lots of objects to help you. Over 20 
rooms. 


Ring of the Goddess (pt.2) 
16K RAM. Cassette: $12.95. 

Takes over where part 1 left off and 
contains a whole new set of problems. 
You must get the ring and the girl to the 
Temple of Alicia. There is nothing ran- 
dom in this game, every problem has a 


PEGASUS MICRO SYSTEMS 


SOFTWARE & HARDWARE ENGINEERS 


P.O. BOX 397 


CHESTERTOWN, MD 21620 
Phone 301-348-5865 


ZX81 & Timex(16K) ZX81 or Timex 2000 
or Timex 1000 (48K) or 
Timex 1000 (48K+) Sinc.Spect. 


(1)Astro Map & 
Conversion 
(2)Design List & 
Other List Programs 


3)Savings & Loan 
Advis.(Amort.é&Inv. 


$9.95 


Counselor) 

(4) No Noj Music Anth.$14.95 Sorry, no C.O.D. 
C59 No No| Artist'sFriemd " 

(6) No No| Cycloids 4 

(7) No No] Bio-map i 

(8) No No] Omnigraph " 


ee D 
Attention software engineers:If you think you 
ave a great program and want the best return on 
Pore ccontact PegasusMicroSystems at above 
address or call 301-348-5865. We offer 80% of 
net profits for work done by you only;60% for 
your work which we help with,and 504 1f you head 
up a team effort. Write or call today .Remember, 
we also help programmers with their problems as 


your ef 


we are programmers! 


104 


(Expanded) 
Yes-$14.95]| Yes-$14.95 


$9.95] Yes-$14.95} Yes-$14.95 
$9.95] Yes-$14.95| Yes-$14.95 


Hi.Res.Vers. 


CRanilray *14% 


Our custom molded tray securely holds your | 
T/S 1000, T/S 16K RAM pak and cassette drive. 
Control panel provides for optional switches. All 
connecting cables are enclosed. For immediate 
shipment send $14.95 plus $2.00 U.P.S. ($5.00 
foreign) U.S. currency, check, money order, 
credit card (type, number, expiration date). 


Free with every tray, Sinclair drivenPROM Burner sche- 
matic, operating system software, and burn machine code. 
You can burn and execute 2716, 2732, and 2732A. Copy 
and duplicate software included. Boards, kits available. 
For immediate shipment send ALL the money you have! 
(or wait for our info pak) 


Dealer and distributor inquiries invited. 
RAM products made in U.S.A. 
Ram 4736 N. Milwaukee Ave. - Chicago, IL 60630 U.S.A. 


uarmmemema E 
Tittle | 
te te te os 


did 


NSISSG | 
'YANYNE NOd 


SYNC Magazine 


a 


Creative Computing 
gives you things to 
actually do witha 
computer. 


Just owning a computer isn’t enough. 
You've got to know what to do with it. 
That’s why applications are our primary 
focus. Text editing, animation, graphics, 
business simulations, data base and file 
systems, music synthesis, control of 
household devices, communications, 
games—some of the applications and soft- 
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Computing. 


4 


We started out as a computer education 
publication, and we're still committed to the 
educational community. We regularly carry 
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evaluating educational software, teaching 
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Creative Computing 
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Our price is right. 


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of dollars in unneeded software, discover uses 
for your personal computer that you might 
never have considered. Articles that increase 
your overall “computer consciousness.” Here’s 

Ow: 


Creative Computing 

helps you decide which 
computer equipment 

is best for you. 


Our tough, no-nonsense equipment pro- 
files arm you with the facts before you walk 
into a computer store. You'll Know the right 
questions to ask and how to cut through 
the jargon and sales hype. We give you 
authoritative guidance in deciding what 
you need, what you don’t need—and 
what’s right for you and your pocketbook. 


Creative Computing 
features the state of 
the art. 


Columns on the most popular personal 
computers, a “software legal forum,” let- 
ters to the editor. Reviews of books, 
games, organizations, dealers and events. 
Fascinating interviews with leading inno- 
vators, equipment designers, program de- 
velopers and game inventors—men and 
women who'll give you a real glimpse of the 
future! 


8H369 


Zip 


ee a ee ee 


Games, continued... 


logical solution. You must solve a few 
riddles which are offered as clues. Play 
time 40-70 hrs. 


Gladstone 
Espionage Island (Z99) 
16K RAM. Cassette: $14.95. 

An adventure game. You are flying 
over an apparently uninhabited island in 
the South Atlantic and your engine fails. 
Learn to treat the natives with respect, 
avoid capture and the enemy, and return 
with the island secret. Cassette routines 
available to save and reload at any stage 
of the game. 


The Keys to Gondrun (Z95) 
16K RAM. Cassette: $9.95. 

A journey beneath the Enchanted 
Forest in search of the missing keys of 
Gondrun the Wizard. Can you stay alive 
and find the keys? Map the caves as you 
travel through them, but beware of the 
nasties lurking there. Features real time 
monster fights at 6 skill levels. Alternate 
responses give a different game every 
time. Save games in progress. 


Inca Curse (Z80) 
16K RAM. Cassette: $14.95. 

You are in a South American jungle 
near an undisturbed Incan temple which 
has lots of treasure. Your aim is to get out 
with as much treasure as you can, but do 
not let greed become your downfall. Cas- 
sette routines to save and load the game 
at any stage. 


Trader (P10) 
16K RAM. Cassette: $19.95. 

Actually 48K long, but is loaded in 3 
parts. Variables are passed between pro- 
grams to provide continuity. Fully ani- 
mated illustrations. 


Krakit (Z48) 
16K RAM. Cassette: $19.95. 

An adventure game and treasure hunt. 
Be the first to crack the puzzle and the 
$20,000 prize which actually exists will be 
yours. Only one prize will be awarded. 
You have 12 clues. The answer to each is 
the name of a country, a city or town, and 
a number. 


Graphicomp 
Adventure I 
16K RAM. Cassette: $16.95. 

A full machine code adventure game. 
A truly addictive game of dungeons and 
dragons variety. Wander the caves and 
find the treasure, but beware the snakes 
and dragons. Very close to original main- 
frame version. By Abersoft. 


Pimania 
16K RAM. Cassette: $16.95. 
Adventure game in which the game 


106 


provides riddles which if answered cor- 
rectly will lead you to the time and place 
where a $12,000 piece of art is awarded 
you. The reverse side includes a “free hit 
single” by Clair Sinclive and the Pi Men. 
By Automta Cartography. 


Stormer 
16K RAM. Cassette: $14.95. 

The game that completes your col- 
lection. Incredible animation and 
response. Supports Mikro-graph Joystick. 
By Microgen. 


Kopak Creations, Inc. 
Nightmare Park 
16K RAM. Cassette: $14.95. 
Use your smarts as you walk through 
“Nightmare Park,” Adventure game. 


McKelvie Programs 
Game Master 

A control and record keeping system 
for role-playing fantasy adventure games. 
This is not a game, but aids in role play 
by taking over chores of the typical game. 
8 functions: Creates and Reviews char- 
acters. Create up to 6 Monsters at a time. 
Review monsters. Traps, Secret Doors, 
Surprises. Wandering Monsters. Full 
range of game dice to help resolve chance 
situations. Combat Melee. Can save 
everything in memory. 1K and 2K ver- 
sions available. Write for details. 


Moviedrome-Video 
The Tomb of Dracula 
16K RAM. Cassette: $15. 

A horror adventure game with 3-D 
graphics. Price includes air mail postage 
from U.K. 48K Spectrum version also 
available; color & sound (also $15). 


Pinnacle Software 
Raider of the Ancient Tombs. 
16K RAM. Cassette: $12.95. 

You are a courageous archeologist 
searching for treasures in darkest Africa. 
Watch out for the Mogumba Warriors, 
ancient booby traps...and your de- 
spicable rival, Merrick. Features com- 
bined graphics/text display, eight levels 
of difficulty, complete instructions in 
program. Also includes a second deluxe 
version, with twice as many locations, 
and an evil demon who relentlessly 
tracks you through the maze. 


Savage Software 
Trader Jack 
16K RAM. Cassette: $14.95. 

Adventure, trading game set in the 
South Pacific. With 40K pick and outfit 
your vessel then trade among the islands. 
Your choice of motor or sail against the 
storms and volcanic eruptions. A short 
voyage, low profits; a long voyage with 
greater risks yields greater profits. 


Simpson Software 
ZX8I1 Adventure 
16K RAM. Cassette: £4.00. 

Adventure game set in Camelot Cas- 
tle. 25 locations with lots of treasure but 
watch out for the dwarves and pirates. 


Smartware 
James Bond Adventure #1 
16K RAM. Cassette: $9.95. 

You help “Agent 007” make the right 
decisions to complete his mission. Of 
course, you will travel to exotic places, 
fight against overwhelming odds, and 
hopefully save the world. 


Soft-Way 
Game Master 
16K RAM. Cassette: $14.95. 

Make your own adventure games with 
no programming required. Menu driven 
tool allows you to play or change the 
game at will. 


Softsync, Inc. 
Double Feature Adventures 
16K RAM. Cassette: $17.95. 

Two adventures on one cassette fea- 
turing randomly generated clues, 
solutions, objects, and rooms so that every 
time you play the games will be different. 
In Quest for The Holy Grail you land on 
a lush volcanic island and must outwit the 
evil Le Mechant, escape the hungry 
natives, and descend the underground 
passageways. In the Elusive Mr. Big you 
are a hardbitten detective moving against 
the clock to find the Elusive Mr. Big. 


Shark Treasure 
16K RAM. Cassette: $14.95. 

This adventure takes place in deadly 
shark infested waters which guard 
fabulous riches hidden in the wreck of a 
sunken pirate ship. You must find the 
treasure and escape unscathed from the 
jaws of death. The program gives you a 
description of where you are and what 
you see. You tell the computer what to 
do. 


Upstate Labs 
Dry Gulch 
16K RAM. Cassette: $9.95. 

An interactive adventure game in which 
you type in short English phrases, such as 
GO NORTH, TAKE THE HAMMER, 
SAW THE IRON BARS, to explore a 
ghost town in the old west and to search 
for treasure. In Basic and SAVEable in 
progress. Estimated time to solve: 10-12 
hrs. 


Morloc Castle 
16K RAM. Cassette: $12.95. 

You must find and enter a secret castle, 
locate a magic medallion (defeating the 
wizard in the process), and escape with 
your life. Provides over 200 words of 
vocabulary. In ML for faster response 


SYNC Magazine 


——— | 


and is SAVEable in progress. Uses almost 
every byte of RAM. Estimated time to 
solve: 30-50 hrs. 


ZX-Guaranteed 
Venture 
16K RAM. Cassette: $12. 

Adventure Type Game. In reality 7 
games in 1. Makes extensive use of mov- 
ing graphics and has novel methods of 
clearing screen (part machine code). 


Shoot ‘em Up Games 


Asia Tsucho Co., Ltd. 
Submarine Game 
16K RAM. Cassette: $12. 

You are the Submarine itself and must 
destroy a destroyer flotilla by using two 
right/left cursor keys move your Sub- 
marine. The higher scores you obtain, 
the more pleasure you will surely feel. 


Digital Integration 
Night Gunner (ZX81) 
16K RAM. Cassette: £$4.95. 

Enemy aircraft approaching. 
Battlestations! Waves of enemy fighters 
swooping in for the attack! Can you sur- 
vive another mission? This is the ul- 
timate challenge. An entertaining 
machine code game with excellent 
graphics. (Distributed under license by 
Softsync, Inc.) 


Gladstone 
Battleship (Z56) 
16K RAM. $9.95. 

The classic confrontation between two 
naval forces. Position your battleships, 
cruisers, destroyers, and subs; then search 
out your opponent’s fleet. Keep your 
forces hidden while trying to sink the 
enemy’s. 


Gunfighter (Z76) 
16K RAM. Cassette: $11.95. 

3 programs. Gunfighter: Graphic rep- 
resentation of an old time wild west shoot- 
out. 6 skill levels. 1 or 2 players. 3-D Tic 
Tac Toe: More challenging version of 
the popular game. Life: Simulates birth, 
growth, and death of a cell colony. Set 
the ground rules and watch the results. 


Just Games 
Chopper 
16K RAM. Cassette: $19.50. 

Fire up the engines and take off. Man- 
euver your helicopter through the 
treacherous cavern all the way to the 
enemy base. Dodge the enemies ever 
constant tank fire, missiles, and other 
obstacles. The rough terrain of the cavern 
is enough to challenge even an exper- 
ienced chopper pilot. 


Mission: Escape 
16K RAM. Cassette: $14.95. 
The orders are in: you must launch 


May/June 1983 


your fighter and escape from the inevit- 
able. Destroy enemy scout fighters while 
protecting your evacuation fleet. Your 
ship has a limited fuel supply and must be 
refueled often by any possible means. 
This is the first part of the Mission: 
Escape real time graphic adventure 
series. 


The Lamb’s Software 

Subsearch 

16K RAM. Cassette: $7.50; Listing: $2. 
A naval defense game in which you 

are the surface vessel. Play choices are 

“Attack Level,” “Ocean Depth,” and 

“Visibility.” An enemy submarine and 

aircraft are attacking you with torpedoes 

and bombs. You fight back with depth 

charges and antiaircraft guns. 


Orbyte Software 
Salvo 
16K RAM. Cassette: $14.95. 

A game of strategic naval warfare for 2 
players. Each has a fleet of battleships, 
destroyers, and cruisers concealed in the 
waters of the computer screen. They take 
turns firing salvos of 7 shots on a coordi- 
nate grid in hopes of sinking the oppo- 
nent’s ships. The more ships sunk, the 
less ammunition available to retaliate 
with. 


Intercomputer Inc. 
Missile Launcher (FG1002) 
16K RAM. Cassette: $12.95. 

Your goal is to destroy the enemy’s 
ammunition, which is stored in five dif- 
ferent locations. You have 15 missiles to 
launch at these targets, and two bonus 
points for totally destroying it. The de- 
structive power of your missiles increases 
after each firing. Perfect score is 25. 


Air Attack (FG1006) 
16K RAM. Cassette: $12.95. 

You are a bomber pilot in command 
three bombers. You are attacked by the 
battleship and a hidden missile launcher 
in the port city. Your only chance of 
survival is to destroy the battleship and 
city. You lose when all three of your 
bombers are destroyed. 


Submarine (FG1-15) 
16K RAM. Cassette: $12.95. 

Take the challenge of being the com- 
manding officer of the U.S.S. Subfinder. 
Intelligence has reported 5 enemy subs 
are off our coast. Track them down with 
your sonar which you can use 3 times for 
each sub. Try to hit the sub with one of 
your 10 mines, but once you drop a mine 
they will know your location and will fire 
torpedoes. 


Savage Software 
Winged Avenger 
16K RAM. Cassette: $14.95. 
A fast action game with 6 skill levels. 


NEED HELP BUYING 
A COMPUTER 
OR PERIPHERAL? 


GET THE 
GUIDE! 


creative compating 3, 
BUYER’S GUIDE TO 
PERSONAL COMPUTERS, 
PERIPHERALS AND 
ELECTRONIC GAMES 


BUYER'S GUIDE TO 

PERSONAL COMPUTERS, 
PERIPHERALS AND 

ELECTRONIC GAMES 


Features include: 
Which computer is for you 
Evaluations of personal computers 
Tips on buying peripherals 
Peripheral product reviews 
Music synthesizers 


Comprehensive evaluation of 
joysticks, paddles and game port 
extenders 


Video game systems and software 


Roundup of electronic toys and 
games 


Electronic and computerized 
learning aids 
Video products for computer users 


Selected microprocessor-based 
consumer electronics products 


ORDER YOUR COPY OF THIS 
COMPREHENSIVE GUIDE TODAY! 


HERE’S HOW 
TO ORDER 


Send your name, address and 
$5.00 ($3.95* plus $1.05 postage 
and handling) to: 


Buyer’s Guide to 


Personal Computers 
P.O. Box 555, Morris Plains, N.J. 07950 


Please make check payable to: 


Buyer’s Guide to 
Personal Computers 


*NJ residents add 5% sales tax. 
Price outside U.S.A. $6.00. 


107 


Games, continued... 


Dumb and smart missiles are launched 
against your base. Both scout and main 
fleet attacks. Your safety depends on your 
laser gunnery skills. You must wipe out 
these forces before you exhaust your 
energy and are forced to surrender. 


Softsync, Inc. 
Alien Invasion 
16K RAM. Cassette: $14.95. 

A dark cloud appears on the horizon 
and inches towards you. The invasion is 
on and they fire, blowing away bits of 
your shields. You thrust left and right, 
avoiding bombs while you knock the in- 
vaders off one by one. But they inch 
closer, thirteen rows, seven to a row. Can 
you get them before they reach your 
base? (Licensed from Quicksilva.) 


Night Gunner 
16K RAM. Cassette: $14.95. 
You peer into the inky black sky from 


your position as tail gunner in a bomber | 


plane, searching for enemy aircraft. A 
fighter plane swoops down, you swing 
your gun into position, line up your sights 
and fire. Each round gets faster and 
harder. Features on-screen scoring, high 
score and ammunition count as well as 
bonus points. (Licensed from Digital 
Integration.) 


ARE YOU HAVING PROBLEMS 
UNDERSTANDING THE MANUAL? 


Softwar 
Guadalcanal 
16K RAM. Cassette: $9.95. 

You are the commander of a submarine 
which encounters an enemy convoy. Your 
mission is to eliminate the entire fleet. 
Ten commands help you control your 
torpedoes, missiles, and sabotage mis- 
sions, They counter-attack with depth 
charges, mines, and escort boats. 


Bob Woish 
Sink the Sub 
2K RAM. Cassette: $3; listing: $2. 

The enemy sub is cruising in one of 
10,000 possible locations in the ZX Sea. 
Your mission is to follow directional clues, 
track down the sub, and blow it out of the 
ocean. Compete against yourself or others 
for best score. Graphics. 


Thomas B. Woods 
Mad Dog Tank Blaster 
16K RAM. Listing: $6.95. 

Puts you against the tank. Move your 
man, plant your mines, but watch out for 
that tank. It shoots and might run you 
down. Manual explains moving men, bul- 
lets, and explosions. Learn to map your 
display for complex interactive graphics. 


Casino Games 


Banta Software 
Jackpot Casino 
16K or 2K RAM. Cassette: $6.95. 

7 casino-type games: Roulette, Craps, 
Blackjack, One-armed bandit, 
Horserace, Acey-ducey, and 5 Card 
draw. 2K Jackpot: as above with 6 
games. 


Bronder Ent 
Craps 
16K RAM. Cassette: $11.95. 

A craps game that teaches program- 
ming skills. Complete listing; fully docu- 
mented with rem statements and line by 
line explanation of the program; bound 
in 3-hole binder. 


Slot Machine 
16K RAM. Cassette: $7.95. 

Changing symbols give a sense of spin- 
ning wheels. Over 100 word vocabulary; 
24 moving random comment statements. 
Excellent graphics. Program on cassette 
and listable; includes printout of odds 
chart. 


Data-Assette 
Roulette 
16K RAM. Cassette: $14.95. 
Accepts all legal roulette bets in any 


NO MORE BAD CASSETTE LOADS 


with 


THE Z-DUBBER 


The frustration of trying to load a cassette program into your Sinclair 
ZX80/81 or Timex 1000, is this what you really bought your computer 
for? Why put up with it? Now you don’t have to. The Z-Dubber isa 


No probiem. Understanding Sinclair Basic 
is a newly developed learning aid which 
displays and demonstrates 68 Sinclair 
Basic commands. Basic program lines are 
displayed and simultaneously run on a 
split screen. Go as fast or slow as you like 
because the program waits at each line 
for your cue to continue. Repeat each 
program as often as you like by pressing a 
key. Written in machine language and 
basic, Understanding Sinclair Basic gives 
you a powerful tool with which you can 
unlock the mysteries of Basic program- 
ming. 16K required. — 


small device which connects between your computer and cassette 
player, improving your loading ease 100%. 


$10. PLUS ONE DOLLAR FOR POSTAGE/HANDLING. 
NEW YORK STATE RESIDENTS ADD 8% SALES TAX. 
SEND CHECK OR MONEY ORDER TO A.+ASSOCIATES, 
175 FIFTH AVE., SUITE 3119, NYC 10010 


The Z-Dubber also allows you to connect two tape recorders togeth- 
er, to create perfect duplicates of your favorite cassette programs. The 
Z-Dubber can be yours for $31.95 postage paid within the U.S. area. 
Money back guarantee if not satisfied. Visa & Mastercard welcome. 


BYTESIZE COMPUTER PRODUCTS 
PO BOX 21123 - SEATTLE WA 98111 


A. +Associates 206-236-2066 


108 SYNC Magazine 


combination from one or two players, 
both playing against the TS1000 banker. 
Bet single, double, triple, or quadruple 
number combinations. High, low; red, 
black; even, odd; left, right; or middle 
columns of 12 numbers. By Newsoft. 


Florida Creations-Dept. SBG 
Las Vegas Package 
16K RAM. Listing: $3. 

Vegas 21 Blackjack: Plays Blackjack 
just like Vegas. Double Down, Split 
Pars, etc. Lucky 7 Slot Machine: Fully 
animated three reeled slot. 


Gladstone 
Blackjack (Z88) 
16K RAM. Cassette: $9.95. 

As it is played in the casinos in Nevada. 
Up to 5 players against a dealer. 52 cards. 
Split pairs, double down, and even buy 
insurance. Deck is reshuffled only when 
needed; allows for continuous game. Win- 
nings and losings displayed after each 
hand. 


Slots (Z89) 

16K RAM. Cassette: $9.95. | 
Beat the “one arm bandits.” Choose 5, 

10, 25, or 50 cent slots, even $1. Each 

machine has 6 sets of different graphics 

and pays according to the number of coins 

you have played. 


WHO 


Has the most programs for the ZX-81/T S -1000? 


Softsync Sinclair Zetaware 
Financial 3 5 0 
Educational 5 8 8 
Games 11 13 11 
Misc. 3 3 6 
TOTAL 22 29 25 


WHO 


Has the best prices? 


Zetaware 
$13.25 


WHO 


Sinclair 
$11.20 


Softsync 
$14.95 


Avg. Price 


Will send you FIVE top quality programs on Cassette tape, 
ready to load and run for Only 99¢? 
ONLY: ORIGINAL PROGRAMS 


For details, and a descriptive listing of our various programs, 
please send a self-addressed, stamped (20¢) envelope to: 


ORIGINAL PROGRAMS 


3763 W. Crocus Dr. 
Phoenix, AZ 85023 


Competitor information taken from recent advertising. 
The figures above may or may not be accurate. 


May/June 1983 


Instant Software 
16K RAM. $9.95-$19.95. 

This program allows you to improve 
your blackjack skills. It can accom- 
modate up to seven players against the 
house, keeps track of all wins and losses, 
teaches the skill of card counting and 
shows you how the cards fall in a well- 


_ shuffled deck. 


Intercomputer Inc. 
Vegas (FG1004) 
16K RAM. Cassette: $12.95. 

The roulette wheel is played by one or 
two players. Select a number from 1-32 
and place a bet (maximum $1000). The 
payoff is 20 to 1 for a correct number, 
and 2 to 1 for a number in the same row 
as the winner. 

The slot machine takes $1 bets. The 
jackpot pays $25, aand two of a kind pays 
$2. The $ sign is wild. 


J.L.K. Software 

Slot 

4K RAM. Cassette: $3 U.S.; $4 Can. 
Graphics simulation of a slot machine. 

Press any key to pull the handle and watch 

cherries, lemons, watermelons, oranges, 

bells, and bars appear in the window. 


STOP PLAYING GAMES LOS 


Craps 

2K RAM. Cassette: $3 U.S.; $4 Can. 
Graphics game in which you bet on the 

outcome of the dice. 7, 11, or doubles win 

bet. Displays giant dice. 


Kopak Creations, Inc. 
The Gambler 
16K RAM. Cassette: $14.95. 
Match your black Jack skill with this 
amazing game on the TS1000. 


Lamo-Lem Laboratories 
A Night in Las Vegas 
4K ROM; 1K RAM. Cassette: $9.95. 
Four gambling simulations. Roulette: 
Numbers flash by until a winner is chosen. 
Blackjack: Played with 4 decks. Craps: 
With pass line, “hardways,” the field, etc. 
Slot Machine: With reels that click into 
place one at a time. Manual, guide cards, 
color layouts, chips, and 3 keyboard over- 
lays in color. 


R. Midura 
Crazy 8 and Poker 4 
16K RAM. Cassette: $10. 

2 games. Crazy 8: Displays card in play, 
2 keystroke selection of card from deck 
of 52 to play with options to draw and to 
peek at computer’s hand at any time 
during game; score keeping. Winner of a 
hand is dealt to and plays first. Poker 4. 


9 
S 
S 


RN 
RS 
S 


TER using BASIC. 


3G COMPANY, INC. DEPT. S 


@ Calculate odds on HORSE RACES with ANY COMPU- 


ORIGINAL @ SCIENTIFICALLY DERIVED SYSTEM really works, TV 
Intercomputer PROGRAMS Station WLKY of Louisville. Kentucky used this sytem 
— to predict the odds of the 1980 Kentucky Derby. See 
3 10 the Wall Street Journal (June 6. 1980) article on 
5 4 Horse-Handicapping. This system was written and 
used by computer experts and is now being made available to home computer owners. This 
12 12 method is based on storing data from a large number of races on a high speed. large scale 
4 9 computer. 23 factors taken from the ‘‘Daily Racing Form’ were then analyzed by the 
computer to see how they influenced race results. From these 23 factors. ten were found to 
13 35 be the most vital in determining winners. NUMERICAL PROBABILITIES of each of these 10 
factors were then computed and this forms the basis of this REVOLUTIONARY NEW 
PROGRAM. 

@ SIMPLE TO USE: Obtain “Daily Racing Form’ the day before the races and answer the 10 
questions about each horse. Run the program and your computer will print out the odds for 
all horses in each race. COMPUTER POWER gives you the advantage! 

@ YOU GET: 1) Cassette. 

2) Listing of BASIC program for use with any computer. 
ORIGINAL 3) Instructions on how to get the needed data from the ‘Daily Racing Form’’ 
Intercomputer PROGRAMS 4) Tips on using the odds generated by the program. 
— 5) Sample form to simplify entering data for each race. 
$12.95 $6.00 


(503) 357-9889 


RT. 3, BOX 28A, GASTON, OR 97119 


Yes, | want to use my computer for FUN and PROFIT. Please send me programs 
at $24.95 each. Circle the cassette you need: TRS-80, Color-80, Apple, PET/CBM, 
VIC-20. Commodore 64, Sinclair Timex 1000 or Atari = 
Enclosed is: [_] check or money order L] MasterCard L] Visa 2 

Card No. Exp. date 
NAME 
ADDRESS 
CITY STATE T 3 E 


START USING YOUR COMPUTER FOR 


FUN ana PROFIT! 


109 


Music and Sound 


Bi-Pak Semiconductors 

Zon X-81 

1K RAM. $49.95 incl. airmail postage. 
A self-contained sound unit to plug 

into your computer to give you a whole 

range of music sound or noise, 8 full oc- 

taves; uses 3 channel sound chip. Full 

instructions and programs supplied. 

British made. 


Compusound 

Telesound 84 $19. 

Power supply; 3mA derived from com- 
puter modulator. 

Enables any sound source such as the 
loudspeaker or sound effects from a 
home computer to be heard direct 
through an unmodified TV set. Three 
snap on connections inside the computer 
make fitting easy. Telesound 84 mea- 
sures an incredible 1 x 3⁄4 x '/% inches 
and comes complete with full fitting 
instructions. Dealer enquiries welcome. 


DCP Microdevelopments Ltd. 
DCP Speech Pack. £49.95. 

Compact cased unit that plugs onto 
rear of ZX81 and gives speech output. 
Built-in vocabulary and simple to use 


single POKE commands to make it speak. 
Other word packs can plug in inside and 
other ZX addons can plug in the expan- 
sion port at rear of Speech Pack. Cased 
and assembled. 


Evansoft Associates 

Music Theory|Ear Training 

2K RAM and 16K RAM. Send SASE for 

free catalog or $5.95 for sample. 
Elementary music theory and ear train- 

ing programs. Drill and practice, some 

tutorial, presented as games. Text, graph- 

ics, and sound generation are used in 

separate programs on note recognition, 

intervals, melodic dictation, etc. 


Florida Creations-Dept. SBG 
Music/Sounds on the Radio 
1K RAM. $5. 

This technical article describes how to 
broadcast sounds and music to a nearby 
radio using the natural radio interfer- 
ence generated by the Sinclair. No hard- 
ware modifications are required. Sample 
song and weird sounds listings included. 


Gladstone 
DCP Speech Pack (D80). $99.95. 

Adds solid-state speech. Contains all 
the letters, numbers zero to over a million, 
and some general words. Uses POKE 
commands. Plugs into rear of computer 
and can be used with other accessories. 


Contains its own speaker, volume control, 
and external expansion addition. Word 
Pack ROMs plug into sockets inside to 
extend the vocabulary. 


Horizon Simulations 
Music Machine 
1K RAM. Cassette: $5. 

This program in machine language 
will play music through your television 
on your tape recorder. You play music 
by pressing the notes on the keyboard. 


Hurricane Electronics 

Arcade Master Sound Module 
Assembled and tested: $59.95; kit: 
$52.95. 

A self-contained plug-in module capa- 
ble of creating almost any sound imagin- 
able, or music in three part harmony. 
Two TTL I/O ports with mating con- 
nectors for Atari joysticks. Other applica- 
tions: Security/monitor systems, auto. 
phone dialer, FSK and DTMF encoder, 
and more. Can be used with printer, 16K 
RAM pack, and most other modules. 


Wm. Maples 
Virtuoso 
2K RAM min. Cassette: $6.95 pp. ($9.95 
outside U:S.). 

A versatile music synthesis program. 
Requires recorder, but no music 
knowledge. 


The computer-age storybook for kids! 


KATIE 
AND THE 
COMPUTER 


By Fred D’Ignazio 
Illustrated by Stan Gilliam 


This wonderful storybook 
teaches young children how a 
microcomputer works. Katie 
ends up inside her dad's new 
micro...and has an adventure 
with Colonel Byte and the other 
characters who make a com- 
puter work. Her journey follows 
the path of a computer com- 
mand: her experiences are 
technically accurate yet easily 


understandable, right down to 
her encounters with a program 
bug. Additional material is in- 
cluded to help you relate the 
story to actual working parts of 
the computer. With truly. ex- 
ceptional color illustrations, 
this is an excellent first com- 
puter book for youngsters. 
Hardcover 

11” x 8%’ illustrated. 


For faster service, 


PHONE TOLL FREE: 800-631-8112 


(In NJ only: 201-540-0445) 
Also available at your local bookstore or computer store. 


110 


ness sta 


REATIVE COMPUTING PRESS 


Dept. NB5H, 39 East Hanover Avenue 
Morris Plains, NJ 07950 


Please send me ——— — — Katie and the 
Computer at $8.95* plus $2.00 postage and 

handling each. Outside USA add $3.00 per | 
order. #12A 


[] PAYMENT ENCLOSED $___ 
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applicable sales tax. 


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C] Send me a FREE Creative Computing | 
ics 


SYNC Magazine 


< Sg 


Program Pack 3. 1K RAM. 
3 programs: Astropilot, 
Graphic Designer, Roadrace. 
Program Pack 4. 16K RAM. 
2 programs: Asteroid Belt, Surround (2 
versions). 
Program Pack 5. 16K RAM. 
4 programs: Traps, Sheep, Reaction 
Timer, Trails. 
Program Pack 6. 16K RAM. 
2 programs: 3-D Oxo, Mars Rescue 
(adventure game). 
Program Pack 7. 16K RAM. 
2 programs: Zombies, Mount Mayhem. 
Program Pack 8. 16K RAM. 
4 programs written into one 16K program: 
Word Search, Towers of Hanoi, Germ 
Warfare, Intercept. 


Automatic 


Ken Doggett 

5 Games 

1K RAM. Listings: 5 Games: $1.95; 8 
Games: $2.50. 

Game package includes: Starfighter, 
Sector Attack, and more. Listings are 
verified for accuracy and on clear read- 
able photocopies. 


Florida Creations-Dept. SBG 
Arcade Games Package 
16K RAM. Listing: $3. 
Tank Zap: Tanks appear on the screen 
and you must get them before they get 


JOYSTICK and ZX-MAN -Both for $24.95 


<> 


JOYSTICK 


With ATTO-SOFT’s JOY- 
STICK your ZX8I or TIMEX 
1000 can be turned into an ar- 
cade type computer allowing fast 
controlover ZX-MAN and other 
type software. Requiring only six 
simple solder connections inside 
your computer. Also included is 
software to develop your own 
programs 


Send Check or Money Order to: 


AT TO-ouFT 


832 E. Third Street 


Galesburg, Illinois 61401 


American 
Express 
Accepted 


(309) 343-4114 


May/June 1983 


ZX-MAN 
Turn your ZX81 or TIMEX 
SINCLAIR 1000 into an ar- 
cade type game computer with 
ZX-MAN. 
code makes this fast acting pro- 
gram as much fun as being at 
the arcades. With the joystick 
option you can have the real 
feel of game playing never be- 
fore available for your ZX8I 
or TIMEX SINCLAIR 1000. 
16K required 


naas 


you. Tic Tac Toe: It is you against the 
computer in this classic game. 


Florida Creations-Dept. SBG 
Fun and Games Package 
IK RAM. Listing: $2. 

Lunar Lander: Try to land on the pad 
without blowing up. Secret Code: Con- 
verts your special messages to unintelli- 
gible code and back again. Draw: Draw 
and sketch on the screen. 


Blaine Geddes 
6 Programs 
16K RAM. Cassette: $11 (Canadian). 

6 programs: (Checkers, Invaders, 
Towers, Roadrace, Blackjack, Lunar 
Lander. 


Gladstone 
1K Games Pack (Z252) 
1K RAM. Cassette: $9.95. 

11 games: Slot Machine, Etch and 
Sketch, Slalom Ski, Catch Me If You 
Can, Space Pirate, Spacefire (2 versions), 
Car Crash, Man-Eating Budgies, Maze, 
and the Wall. 


H & H Electronics 
Fun & Games 
IK or 2K RAM. Cassette: $9.00 plus 
75¢ s&h. 
12 Game programs that include: Auto 


100% machine 


$14.95 


minutes to 


tomb .. 
Vaut ... 
' sunset . . 


Please add $3.50 
Postage and Handling 
COD $2.00 additional 


THE TOMB OF 
DRACULA! 
BLD HORROR apvenrure GAME! 


FOR THE 16K TS1000/ZX81 
OR TS2000/SPECTRUM 


A superb 3D graphics adventure game! Enter Dracula’s tomb at 30 


der through the tomb’s pre-mapped 300 vaults in search of the fabled 
Vampire’s Treasure . . 
to defend yourself against the lurking horrors . . 
' of primaeval slime .. . 
. when it will let youl Take a chance on a Mystery 
if you dare! And all the time the minutes are ticking by to 
. when Dracula rises from his coffin and comes after you! 
Each of the infinite levels of the tomb has its own 300 vaults . . 
deep as you like, the Prince of Darkness will seek you out in his 
bloodiust! WARNING: people of an exceptionally nervous disposition 
should play this game only during the hours of daylight! Special 
facility lets you save a game in progress onto tape so you can continue it 
whenever you choose. 


Price includes ready-to-load cassette with library case and 
inlay, full instructions, AIRMAIL postage and packing. Order 
today! Money refunded if not delighted! 


Send cash or cheque to: FELIX SOFTWARE (DEPT. SCI), 
19 Leighton Avenue, Pinner, HA5 3BW, ENGLAND. 


Racer, Blackjack, Depth Charge, Dis- 
play Program, Mini Artist, Three 
Towers, Russian Roulette, Craps, At- 
lantic City Slots, and three more. 


Human Engineered Software 
2K Fun Pack 
2K RAM. $14.95. 

A real bargain for Timex owners, 
three arcade type games in one package. 
Includes Music Maker, Breakout, and 
Invaders. 


Intercomputer Inc. 
Combo Pak I (FG1008) 
16K RAM. Cassette: $18.95. 
Contains Return from Space and 
Missile Launcher. 


Combo Pak II (FG1009) 
16K RAM. Cassette: $18.95. 
Contains Vegas and Jeopardy 


Combo Pak III (FG1010) 
16K RAM. Cassette: $18.95. 
Contains Demolisher and Air Attack 


Combo Pak IV (FG1012) 
16K RAM. Cassette: $18.95. 

Contains Guard the President and 
Submarine. 


sunset wan- 


. pick up valuable silver stakes and use them 
. ghouls, zombies, pits 
See them all on the computer's plan of the 


. goas 


111 


Games, continued... 


Macronics Systems Limited 

ZX81 Bumper Pack-1 

16K RAM. 3 Cassette Pack: £14.95. 
Includes 7 machine code/Basic quality 

games on 3 cassettes (available separately 

also): 1) Space Invaders and Zac-man 

(£4.95). 2) Nightmare Park, Space Rescue, 

and Dragon Maze (£5.95). 3) City Patrol 

and Sabotage (£5.95). 


ZX81 IK Super Trio 
1K RAM or more. £4.95. 

3 1K RAM machine code games: 
Breakout, Music Maker, and Space 
Invaders. 


Spectrum Bumper Pack-2 
Spectrum. 16K RAM. Cassette: £9.95. 

5 games with full color, sound, graphics; 
supplied on 2 cassettes: 1) Nightmare 
Park, Space Rescue, and Dragon Maze 
(£5.95). 2) Devil Birds and Digger (£5.95). 


New England Software 

7 Game Cassette 

16K RAM. Cassette: $14.95 pp. 
Mastermind: Up to 6 players can play 

any difficulty up to 5 out of 9. Double- 

mind: Challenging. Slot Machine: Correct 

probabilities and nice graphics. Craps: 

Nice graphics. Tic Tac Toe: Challenge 

the computer with 3 levels of play. Sub 

Rescue: Save the sub. White Hot Number. 


Panero Software 
Space Challenges 
1K RAM. Cassette: $7.25. 

Five exciting arcade-action games. All 
have moving graphics and a full screen 
display (not cramped in a corner). In- 
cludes Defense Wave, Tempestuous Bat- 
tle, Zap-It!, ICBM Barrage and Lander 
X. 


Earthy Challenges 
1K RAM. Cassette: $7.25. 

Five arcade-inspired games to chal- 
lenge and amuse. All have moving 
graphics and full screen display. In- 
cludes Pickle Man, Ms Pickle Man, 
Supertank Warzone, Monkey Barrels 
and Mine Field Kaboom. 


Challenges from Another Dimension 
1K RAM. Cassette: $6.75. 

Five arcade-action games with moving 
graphics and full screen display. In- 
cludes Frog-it, Evade, CRON:ZX81 
Warrior, Robot Catch and Draw. 


Pleasantrees Programming 

5 Fun’n’Games Pak 

16K RAM. Cassette: $12.95 plus $1.50 
s&h. 

5 games: 1) 50 States: Teaches states, 
capitals, spelling. 2) Mini-Boggler: Vocab- 
ulary building game (like Scrabble); 2-4 
players. 3) History I: Quizzes people, 


112 


places, dates (1600s 1870s). 4) History II: 
Like History I (1870s to present). 5) 
ZXAK-Mamm: Arcade game fun. 


Savage Software 
Ten Good Games 
16K RAM. Cassette: $14.95. 

Arcade and maze type. Includes Fstfwd 
counts for high speed LOADing. Pac 
Maze, Gobler, Astro Star Defender, Vam- 
pires, Suicide, Minefield, Frogler, Dic- 
tator, and Bomber. 


Simulsion 
Classic Games for the ZX81 & TS1000 
1K RAM. Cassette: $9.95. 

Four games. Lunar Lander: With a 
readout of altitude, velocity, thrust, and 
fuel. Dogfight: A get-em-in-your sights 
action game with 1 second screen 
updates. Mindmaster: Deduce the hidden 
combination of four symbols. Life: Form 
a colony and watch the cells grow or die 
in two second life cycles. 


Softsync, Inc. 
2K Games Pack 
2K RAM. Cassette: $14.95. 

6 great graphically illustrated games on 
one cassette for the unexpanded TS1000. 
Copter Patrol: Blow out the enemy de- 
fense system. Astrowalk: Reunite with the 
mothership or else. Killer Whale: Before 
surfacing for air, the whale must eat as 
much as possible. Monster Masher: The 
monster is on the loose. Star Blaster: Blast 
a path home through the star cluttered 
galaxy. Dragon Slayer: Escape the 
hunter. 


Software Development Associates 
Games Two (G102) 
16K RAM. Cassette: $4.95. 

Darts: For 1 or 2 players. Throw at a 
target that has 10, 20, & 30 point zones. 
Score 200 points to win. Requires 2K. 
MASTERMIND: Try to guess a secret 4 
digit code that is randomly selected by 
the computer. 


Syncware Company 

Games I 

16K RAM. Cassette: $10.50. 

Listing, documentation, and cassette of 
four games. Syncwars: Keyboard re- 
action time; in 1K, 2K and 16K. Guess 
My Number?: Logical deduction. Black- 
jack: Sheer luck, in 16K only. Listings 
and docs available separately for $5.00. 


2-Bit Software 
Games Sampler 
2K RAM. Cassette: $9.95. 

Contains: Kamikaze Fly: A dexterity 
game in which Freda the Frog tries to eat 
dinner. Sketchpad: An easy to use screen 
drawing program. Navajo Rugs: Gen- 
erates kaleidoscopic patterns randomly. 
Biorhythm: Plots your mental, physical, 
and emotional states on any given day. 


Making Treks 
2K RAM. Cassette: $9.95. 

See the world with variations on adven- 
ture games that take you from the calm 
Pacific to the frosty Himalayas. You may 
find yourself riding a camel, floating on a 
hot air balloon, or steaming along on a 
slow boat to China. The object is to return 
home before your vacation is over and to 
have a good time. Bon Voyage. Ages 10 
and up. 


Mind Bogglers 
2K RAM. Cassette: $9.95. 

Four brain-testing, brain-twisting trials 
and triumphs. How good are you at left- 
brain (analytical) and right-brain (spatial) 
mental gymnastics. Figure out: Sinclair 
Towers, Eye Q, Dots and Spots, Seven 
Bridges. Ages 12 and up. 


Timeworks, Inc. 
5-2K Games. (1201). 
2K RAM. Cassette: $11.95. 

Five games for the basic TS1000: Spider 
Sam: Try to climb the building without 
falling off. Artist: Draw your own pictures 
and save them on tape. Labyrinth: Find 
your way through the maze. Mine Field: 
Locate the land mines. Galactic Scout: 
Find your way through the meteors, then 
battle the enemy to save the galaxy. Full 
graphics and various skill levels in each 
game. 


Z-Games 
Five Games 
1K RAM: $2. 

5 games: Treasure Hunt, Random 
Race, etc. Includes aircraft, landing 
graphics display. Both educational and 
entertaining. 


Other Games on the 
Computer 


American Micro Products, Inc. 
Concentration 
16K RAM. Cassette: $17.95. 

A computerized version of the game 
Concentration. The game is played on a 
board containing fifty spaces. The player 
matches his memory against the computer 
in finding number pairs hidden across the 
board. 


Banta Software 
Football 
16K RAM. Cassette: $6.95. 

One of two players; stationary graph- 
ics: uses statistics to calculate gains and 
plan strategies. Truly a game for the 
thinking person. 


Cleva Computer Ware 

Crazy-cards/Cube 

16K RAM. Cassette: $9.95. 
Crazy-Cards: Learning the rules does 


SYNC Magazine 


not seem to help. Totally addictive for 
cheats. Cube: Use your computer to 
solve the mysteries of the Rubik Cube. 


Dunrobin Software 

Rubber Bridge Scorepad 

16K RAM. Cassette: $15 (includes air- 
mail postage). 

A comprehensive and automatic 
bridge scorepad. Menu-driven, with 
statistics page and history of scores each 
hand (holds up to fifty). All details save- 
able for continuation/future study. 


Dunrobin Software 

Brainteasers 

16K RAM. Cassette: $15 (includes air- 
mail postage). 

Three games: ‘‘matchgame’’ (or 
“Nim”), “Diceroll,” and the old English 
pub game-“close the box.” Frustrating 
yet absorbing puzzles for any age from 8 
to 80. Full instructions included. 


Emvee Software 
Mini-Cricket 
16K RAM. Listing: $6. 

Accurately simulates the game of 
“limited over” cricket. Play against 
another player or the computer. Input 
the names of the individual members of 
your team then decide your team’s tactics 
for each over of the match (whether bat- 
ting or bowling). Full instructions. 


Gladstone 
Shell Game| Number Maze (Z59) 
16K RAM. Cassette: $9.95. 

2 games. Shell Game: Watch the 
“Hustler” move the shells. Try to keep 
track of the “pea.” Bet and guess. Number 
Maze: Computer version of the pocket 
puzzle. Move the number squares one 
space at a time until they are in order. 


Glassware-D. Glass 
Mastermind 
2K RAM. Cassette: $2.95 + 75¢ s&h. 
This is a challenging ZX/Timex 
numerical version of the popular logic 
game. Can you crack the computer-se- 
lected code in less than 10 tries? Full dis- 
play; prompts and instructions. Check 
your reasoning power, with only 2K 
RAM. 
Any two games on the same cassette 
cost $1.00 less than their individual to- 
tal. 


Walter Grundy 

Bingo 

16K RAM. Listing: $4 and SASE. 
Play Bingo; no duplicate numbers. 


Hewson Consultants 
Backgammon 
16K and 48K ZX Spectrum. Cassette: 
£5.95. 
Graphic display of the board, stones 


and tumbling dice. 8 modes of play. You 
can choose: 1) A single game. 2) A 
points series (a number of games are 
played in succession, the winner being 
the one with the most points. 3) A gam- 
bling series: the computer and you start 
with £200 each and both put a £10 bet 
on at the start of a game, which can be 
increased during play. 4) Watching the 
demonstration. The game incorporates 
all the normal rules of backgammon. 


Human Engineered Software 
Reversi 1000 
16K RAM. $15.95. 

Now Timex owners can play the 
popular 19th century parlor game 
against their computer. Includes multi- 
player feature. 


Jeu Intelligent 

Rubic’s Master 

16K RAM. Cassette: $15 (orders outside 
U.S. add $2). 

Menu driven program that solves 
Rubic’s Cube step-by-step displaying each 
move by a simple notation system and a 
3-D graphic representation. Features a 
computer cube scrambler, a current cube 
saver, and a define cube mode allowing 
the user to enter any cube. 


Original ZX81 


a tough, pressure-sensitive adhesive. 


The vinyl overlay is extremely durable, with just enough flexibility 
to keep the original curve in the key top. When trimmed and 
sealed per instructions, the edges disappear; the keys look and 
feel like they were custom-made for your computer. (Caps may 


be painted any color.) 


Includes SHIFT LOCK, an extra FUNCTION/ENTER, and two 
SHIFT keys in larger. sizes, in case you choose to use over-size 


pads for these functions. 


Complete instructions and diagrams for converting inexpensive 
keyboards to customized ZX81/TS1000 consoles. 


Money-back guarantee, of course. 


MULE Electronics 
Dept. 310A 
444 Lincoln BI. Venice, Ca. 90291 


\ 

Ve" 2x81 
KEY-TOP 
SYMBOLS IN 

COLORS 
The Crowning Touch for 
Your Converted Keyboard 


symbols in Red, Blue and Black on White 
background, covered with 7.5 mils of clear vinyl, and backed with 


$9.95 Kit 


SPYDER 


presents the 


ELECTRONICS 


SPYDER CHARACTER BOARD 


. Play and create high resolution games 
. Create your own character sets 

. Includes 2K of memory 

. Use easy to read reverse video 


. Compatible with RAM Packs and ZX Printer 


. Installs easily (Complete instructions included) 


Included with the Spyder Character Board: 


- Full documentation to get the most from your ZX81 


Bare Board -$14.50 
-$24.50 
Assembled -$29.50 


Send check or money order to: 


USA funds only 


Please add $1.50 for shipping, and include 6% sales tax in California. 


May/June 1983 


- Demo tape with character sets 
- Zap-Em high resolution game 
- Spyder Software Catalog 


Add $2.50 for 
postage and handling 


SPYDER ELECTRONICS 
P.O. Box 4172 
Morgantown, WV 26505 


113 


Games, continued... 


Kopak Creations, Inc. 
Backgammon and Dice 
16K RAM. Cassette: $14.95. 

You will need more than just luck to 
win this game in machine code. Full fea- 
tured games include: graphics board, 
rolling dice, and more. 


Mine of Information 
ZX Othello 
16K RAM. Cassette: $19. 

Available for the ZX81 or Spectrum, 
contains many features accessed through 
a menu before, during and after any 
game. Nine skill levels, action replay, set 
up initial position, sample game, etc. 
Sold via Sinclair catalog. Market leader 
in Britain. 


P. Nethercot & R. Rackstraw 
23 Bricks 
5K RAM. Tape only. £2. 

A game of mathematical strategy. It 
starts with 23 bricks and players may take 
1, 2, or 3 at a time. The idea is to leave 
your opponent with the last brick. In this 
case the opponent is your computer. 


Orbyte Software 
Expo Tic Tac Toe 
16K RAM. Cassette: $14.95. 
Computer age rendition of the old 


LET YOUR XZ81/TIMEX 1000 
WORK FOR YOU! 


PERSONAL —BUSINESS—EDUCATIONAL 


PROGRAMS 


Personal and business programs are on cassette, 
are menu driven, run with or without a printer and 


save on tape automatically. 


SALES FILE— 16K AND 64K......... 
CH IIR oora iei 
INVENTORY — 16K and 64K......... 
CASH REGISTER— 16K................ 


Educational programs are on cassette, menu-driven 


and require 16K. 


MULTIPLICATION TABLES ........... 
aiie ay ©) r GUESSES ee O prea mera ae 
FLASH Sr GLUING 0.36502. Se. 


game. 4 boards to play on simultaneously. 
Outsmart the opponent (the computer) 
and get 4 X’s in a row. Computer calcu- 
lates best place for the answer while 
blocking you. 


Rave Research 
Game Tape 
16K RAM. Cassette: $10.95. 

Tired of playing against the computer? 
Checkers: The computer is used to draw 
the board, move the pieces, keep score, 
and announce the winner. 6 Dice: Any 
number can play; computer keeps track. 
Includes a very fast Big Letter routine. 


Savage Software 
Monopoly 
16K RAM. Cassette: $14.95. 

Old favorite monopoly game. Up to 6 
players, including Grandma. The com- 
puter tracks properties, bank balances, 
houses, and hotels owned by all players. 
A total family game. Your choice of lan- 
guage version: Spanish, British, or 
American. 


Paul Shreeve Software 
Wordsearch 
16K RAM. Cassette: $10; Listing: $2.50 
(inc. s&h). 
This program generates word search 


puzzles from words input by the user. It 
prints out a copy of the puzzle if a 
printer is connected. 


Smartware 
ZX Yahtzee 
16K RAM. Cassette: $9.95. 

The classic dice game of strategy and 
luck, played on a computer. One to four 
players. 


Software Development Associates 
Football 
16K RAM. Cassette: $9.95. 

An enjoyable game of college football 
for 1 or 2 players. You select from 1 of 7 
offensive plays and the computer sets the. 
defense, and determines the outcome. 


UAS 
Cribbage. (C2000). 
16K RAM. Cassette: $14.95. 

The game follows the standard rules 
for the game as can be found in any good 
card instruction book. Two levels of play 
are available: 60 and 121 points. The 
computer will shuffle, deal, and cut for 
who goes first, generate the upcard, keep 
track of the score, and credit all points as 
they are earned. The total card play is 
displayed and playing prompts are also 
displayed. 


****** REPORT GENERATOR ****** 
* DATA ACQUISITION AND CONTROL BOARD 


* STANDARD CENTRONICS PRINTER INTERFACE 


ALPHA NUMERIC AND GRAPHICS CAPABILITY 


* CMOS REAL TIME CLOCK CALENDAR WITH 
BATTERY BACKUP 
. MONTH DAY YEAR DAY OF WEEK 


31 99 SATURDAY 


* 8 BIT PARALLEL INPUT & OUTPUT PORTS 
TTL COMPATIBLE USER PROGRAMMABLE 


TIME 
Deporte $19.95 23:59:59 DEC 
= bike o SRS $ 9.95 
E $ 9.95 
settesees $ 9.95 * CMOS ANALOG TO DIGITAL CONVERTER 
seresa $ 9.95 8 CHANNEL 8 BIT DATA ACQUISITION 
si ee $ 95 COMPONENT 
100 MICROSECOND CONVERSION TIME 
0-5V INPUTS 
E $ 9.95 * FEATURES: 
Ea $ 9.95 
i $ 9.95 


ZX81/TS1000 COMPATIBLE 
BUS CONNECTOR FOR RAM PACK 


(COMPLETE DETAILS ON ALL OF OUR PRO- 
GRAMS ARE LISTED IN THIS BUYER’S GUIDE 
ISSUE) 

Any three $9.95 tapes for $24.95. Add $1.00 per tape 
for shipping. Indiana residents add 5% sales tax. Send 
Cert. Check, M.O., VISA or Mastercard # w/Exp. Date. 


Send for free catalog— Dealer inquiries invited 


HEATH COMPUTER SERVICES 
950 EAST—52 SOUTH 
GREENTOWN, IN 46936 

(317) 628-3130 


114 


aerate OR OTHER ACCESSO- 
RIE 
16K RAMPAK DESIRABLE 
MACHINE CODE LISTINGS INLUDED 
I/O MAPPED 
ASSEMBLED & TESTED $69.95 + $3.00 P&H 
SEND CHECK OR M.O. TO: 
OR FOR FURTHER INFO WRITE TO: 


ENER-Z CO. 
P.O. BOX 635 
FT. WASHINGTON, PA 19034 


SYNC Magazine 


Zeta Software 

Revers1 

16K RAM. Cassette: $17.45. 

A Basic/machine language, 8 x 8 square 
version of “I Go,” the Japanese strategy 
game. Features include: 10 skill levels, 3 
player modes, fast ML computer moves, 
and rated possible move displays. 


Snake 
16K RAM. Cassette: $12.45. 

A fascinating game in machine lan- 
guage with 65,000 possible combinations 
of snake-speed and mouse freeze time. 
The object is to guide the snake, eat mice, 
and avoid walls. 


Chess 


Arizoftx 
Chesslab5.0 
16K RAM. Cassette: $19.95 plus $2 s&h. 
An analytical and recordkeeping sys- 
tem for chessplayers; not a game pro- 
gram. Chesslab5.0 displays a chessboard 
upon which pieces can be moved, eight 
positions stored and recalled, sixteen com- 
mands provide flexibility. Filetape5.0 
(included) permits storage on tape of six 
positions per file. 


Gladstone 
Chess I (Enhanced) (Z85) 
16K RAM. Cassette: $14.95. 

Displays board and moves; 6 levels of 
play, 2 within competitive time limits. 
Choose black or white. Plays all legal 
moves including castling and en passant. 
Save games in progress. Output to printer. 
Change sides in middle. Clear board with 
one command. Totally in MC. 


Chess II (Master) (Z86) 
16K RAM. Cassette: $24.95. 

All the features of ZX Chess (Z85), 
plus much more. 7 levels, 4 within com- 
petitive time limits. Computer will suggest 
moves. Book with 32 opening moves. We 
believe it the strongest chess game avail- 
able for the ZX81. 


IK Chess (ZX81) (Z87) 
1K RAM. Cassette: $9.95. 

A good introduction to chess even with- 
in this limited memory space. Full graphic 
representation of the board. Does not 
accept castling or en passant moves. | 
level of play. 


2K Chess (TS1000) (Z55) 
2K RAM. Cassette: $14.95. 

Improved chess game with better 
graphics and superior range of moves. 


Graphicomp 
Chess 1.4 
16K RAM. Cassette: $14.95. 

A full feature chess game offering 10 
levels of skill, graphics display, and hard- 
copy for ZX printer. At any time during 
the game a player can change sides or 
save the game for future play. By 
Abersoft. 


Kopak Creations, Inc. 
Chess and Chess Clock 
16K RAM. Cassette: $14.95. 

A chess game providing at least 6 lev- 
els of play; written totally in machine 
code. 


Softsync, Inc. 
Superchess 
16K RAM. Cassette: $19.95. 

Probably the most advanced chess 
game available for the TS1000/Z X81. Ten 
levels of play; tactical or positional evalu- 
ation; analyze feature allows you to set 
up and/or change a position; a store of 
standard openings; excellent board 
display; up to 15 previous moves dis- 
played; will recommend moves; self play 
allows you to watch Superchess play 
against itself. (Licensed from CP 
Software.) Pa 


FETI F SSSSS 


S 


4444 


S 
sssss 


HERE'S HOW TO SAVE WEEKS - BY 


HARDWARE, AND BOOKS 


ISSUES, TO: 


MI, 49097. 


May/June 1983 


U U 
U U 
sssss U O.-sssss 
U U 
U U 


'S HOW TO SAVE HOURS - WITH OUR PROGRAMMING 
AND HARDWARE HINTS. 

GOING TO THE 
DEALERS WE RECOM- 
MEND 
DELIVERY. 

HERE'S HOW TO SAVE $100'S- BY READING OUR COM- 
PARATIVE REVIEWS OF 
BOOKS, SOFTWARE, AND 
HARDWARE. 

HERE'S HOW TO GET INSTANT HELP AND INFO - BY CALL- 

ING THE HOTLINE FOR 

SUBSCRIBERS. 


WHAT IS TS USER? 
TS USER IS THE NEWSLETTER FOR USERS OF TIMEX AND 
SINCLAIR MICROCOMPUTER PRODUCTS ONLY. EACH 
MONTH YOU GET A NEWSLETTER PACKED FULL OF :?::::::::::: 

* MONEY SAVING COMPARATIVE REVIEWS OF SOFTWARE, 


*1K OR 2K PROGRAMS ILLUSTRATING PROGRAMMING. 
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* NOTICES OF COMPETITIONS FOR SUPER PRIZES. 

“THE HOTLINE NUMBER FOR YOUR QUESTIONS ANDINFO. 
“THE BEST VALUE OF ANY ZX/TS USER PUBLICATION. 
“IN DEPTH ARTICLES OF ADVANCED APPLICATIONS. 
“USER EVALUATED INFO - PLUS, PLUS. 


HERE'S HOW TO SAVE $100'S A YEAR FOR AROUND A 
QUARTER A WEEK rites ste teres 
SEND CHECK OR MONEY ORDER FOR $16.95 ($19.95 OUT- 
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TS 1000™/ZX81" OWNERS: ve — 
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e improve programming and game playing, too! 
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e Clear Vinyl with key-shaped openings and 
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TYPEX/81™ Keyboard 
$5.95 + $1.50 P&H 


Order by mail or phone. 
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115 N. Rocky River Dr. 
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115 


Extending, continued... 


CRC Software 

CRC Smart Soft Face. $109.95. 
Interfaces printers to the Sinclair; ser- 

ial; parallel; uses no RAM; no USR rou- 

tines; any printer; single key operations. 


DCP Microdevelopments Ltd. 
DCP Interspec Pack. £39.95. 

Complete interface pack for ZX81 or 
Spectrum. Contains: 8 bit 8 channel A-D 
converter, 4 relays, 4 switch inputs, 8 bit 
input port and 8 bit output port. Also 
DCP bus at rear of unit for other addons. 
Fully cased and assembled with manual. 


Data-Assette 
Jigsaw Tape Load Interface (ZX22). 
$39.95. 

Power Driven Cassette Loading Inter- 
face. Easy and reliable loading of 
information. Device detects incoming 
signals and automatically adjusts to level 
of that required by the computer. Red 
and Green LEDs give a positive indica- 
tion as to whether or not the program is 
loading. Powered directly by the 
computer’s adapter. 


ZX-21 Metered Loading Interface. 
$19.95. 

Vu Meter allows you to preset your 
tape recorder to a level that is compat- 
ible with your computer, gives you a vi- 
sual indication of the power of your 
signal. Also available is a “Test Align- 
ment Tape” and a booklet “The Micro- 
computers Users Book of Tape 
Recording.” 


ZX98 Parallel and Serial Interface. 
$99.95. 

Both Parallel and Serial on one board. 
Turn your computer into a terminal for 
ON-LINE services or use it to commu- 
nicate to other computers. Interface with 
any printer having a parallel or serial 
port. Several unique features include 
LLIST, LPRINT, COPY, and MEM- 
ORY EXAMINATION of HEX 
BYTE. 


Down East Computers 

VOTEM 

Kit: $39.95 plus $3 s&h. 

Assembled and tested: $59.95 plus $3 
s&h. 

Analog Interface and Tape Signal Con- 
ditioner. 1K and up. Hardware/Software 
package to measure voltage and tempera- 
ture. Voltages: 0 to +1V (expandable). 
Temperatures: -25 to +125C. Extremely 
sensitive (high resolution): 0.00004V or 
0.05C. Computer becomes “smart” volt- 
meter or digital thermometer with stor- 


116 


age. No modifications required. Connects 
to tape input. 35-page User’s Manual, 
cable, and temperature probe. Documen- 
tation alone: $5 (applied to first unit). 


Temperature Probes for VOTEM. $5 pp. 


Ener-Z Co. 
Report Generator 
$69.95 plus 3 s&h. 

Data acquisition and control. Standard 
Centronics printer interface. CMOS real 
time clock calendar with batter backup. 8 
bit parallel I/O ports. CMOS A/D con- 
verter. Features: Bus connector for RAM 
pack; machine code listings included; I/O 
mapped. Assembled and tested. 


Gladstone 

Memotech 
Memopak Centronics Type Parallel Print- 
er Interface (A71). $104.95. 


Interface Innovations 
Screenmate. 
1K RAM. $49.95. 

Offers two exciting and useful acces- 
sories in one peripheral: an attractive light 
pen and an Atari joystick interface. Com- 
plete with “piggyback” feature. 


Inverse Video Module. $12. 

Solders inside case, permits normal 
black on white or inverse video on black. 
From Haven Hardware. 


K-2 Electronics 
Kradle. $195 plus s&h. 

Compact, low-profile metal case that 
fits around your assembled computer, 
adding 64K of low power RAM (all 
usable); a 50-key comfort sized keyboard 
with better layout, feel, and “click”; other 
refinements. Includes: space bar, 9 auto- 
shift keys, joystick connector, cassette 
read enhancer, pilot light, bus expansion 
connector. Introductory price. 


Kradle Communicator. $75. 

An add-in expander for the Kradle, 
providing RS232 and printer/output ports, 
communication to modem or remote 
computer plus standard parallel output (8 
bit) port with handshaking, hardware 
UART, software BAUD select, vectored 
interrupt capability. Requires no memory 
space; I/O mapped. 


Macronics Systems Limited 

F.I.Z. Floppy Interface for ZX81 Disk 
System 

£79.95 plus $1.50 s&h. 

Enables S.A. 400 disk drive to be oper- 
ated from the ZX81. Provides disk rou- 
tines on ROM plus 2K RAM buffer. All 
routines operable from within program. 
Chaining is possible. True random access 
data files supported. Works with 16K 
RAM and Memotech 64K RAM. 


Memotech Corporation 
Memopak Centronics Parallel Interface. 
$104.95. 

The Memopak Centronics Parallel 
Printer Interface enables your TS1000 to 
use a wide range of compatible parallel 
printers. The resident software in the 
units gives the complete ASCII set of 
characters, provides lower case charac- 
ter capabilities and up to 80 column 
printing. : 


Midwich Computer Co., Ltd. 

Joystick and Controller. $14.95-33.85. 
Analogue type joysticks plug into con- 

troller board which fits expansion slot of 

ZX81 or Spectrum. 


Joystick. $19.95. 
Switch type joysticks (pair) and inter- 
face unit fo keyboard entry for games. 


R. M. Norris 
Joysticks. Plans only: $3. 

Complete plans and a program. Does 
not include Atari joystick. 


Professional Electronics 

I/O Board 

16K RAM. Board, programs, and instruct- 
ions. $45. 

Programmable 8255 PIO board for 
TS1000/ZX81. Can be used with three 
ports out, or two out and one in. One port 
is bit-programmable; programmable out- 
put device-select (1 usec. neg. pulse) lines 
are available for expansion. 


Centronics-style Printer Interface 
Cassette programs, extra 8K CMOS RAM 
board, and instructions: $60. 

Printer interface uses ports A and B of 
the I/O board. Primary printer used is the 
Axiom GP-100A. Printer commands and 
ML programs are stored in an 8K memory 
area not used by computer. Prints listings, 
screen copies, ML code, labels, etc. Pro- 
fessional Electronics I/O board required. 


Random Access 

DVC-2 Direct Video Kit 

DVC-2 Kit: $18.95 plus $1.50 s&h. DVC- 
2A, assembled version: $29.95 plus $1.50 
s&h. 

Kit enables the ZX81 to drive a video 
monitor. It provides switch selectable nor- 
mal or reverse video (white characters on 
black background). Small circuit board 
fits inside the computer case. R.F. modu- 
lation is unaffected. 


HDM.-12 b/w video monitor 
$89.95 plus $8.50 s&h. 

12 inch video monitor provides super 
sharp character definition. Input impe- 
dance is 75 ohms; accepts standard NTSC 
composite video via an RCA type con- 
nector. Requires the DVC-2 direct video 
kit to interface with the ZX81. 


SYNC Magazine 


E; 


Input/Output Port 
Built: £13 plus s&h. 

24 lines input or output or mixed. Con- 
trolled using Basic. Plugs into the mother- 
board. 


Redditch Electronics 
Input/Output Port 
£16.48 plus s&h. 

24 lines input or output or mixed. Con- 
trolled using Basic. Printer and RAM pack 
plug onto the back. 


Motherboard 
£13.04 plus s&h. 

Plugs into the back of ZX81 or ZX80. 
Printer/RAM pack plugs onto back. Has 
two female connectors to accept expan- 
sion boards. 


Timer/Counter/Music Board 
£16.48 plus s&h. 

Three programmable counters. Con- 
trolled in Basic. May be used as timer, 
counters, or frequency generators 
(including audio range). 


Redditch Electronics 
Female Connectors Male Connectors 
£2.50 plus s&h. £1.60 plus s&h. 


A doublesided male connector which 
plugs into 23 way female connectors. Will 
connect 2 females together, or ribbon 
cable may be soldered on. 


Digital To Analogue Converter 
£15.22 plus s&h. 

Fits onto input/output port to give one 
analogue output (0 to 2.55 volts); space 
on board for two extra converters (£6 
each). 


G. Russell Electronics 
Winky Board II 
Any size RAM. Assembled: $24; kit: $18. 
This tiny (1” x 1 1/2”) interface lets 
you: 1) Filter RAMPAC noise when 
SAVEing for clean, easy LOADing tapes. 
2) Duplicate any ZX/TS cassette pro- 
gram—even normally unSAVEable cas- 
settes. 3) SAVE on two cassettes simul- 
taneously. 4) Earphone-eavesdrop, set 
optimum tape volume instantly, and filter 
LF interference for easy LOADing. 


Sensible Technical Solutions 
Sensible Technical Solutions (Division 
Sema J Corporation) 

Send SASE for more information. 
Send cash or money order (checks take a 
minimum of two weeks). Make all pay- 
ments payable to S.T.S. (Division of 
Sema J Corp.). All prices include ship- 
ping, handling, and sales tax. 


Easy Z Mount (327). $5. 

Are your plug-in accessories a prob- 
lem for you??? Piggy back as many as 3 
modules steady as a rock. Material fur- 


nished to allow you to attach up to 3 
modules with no further loose mounting 
problems. Also allows for quick mount- 
ing or removal (approx. 1 minute) of 
your modules. 


Sinclair Place 
Light Pen. $39.95. 

For TS2000. Plot, draw, erase, modify, 
save. From dk’tronics. 


Programmable Character Generator. 


$49. 

Standard letters; inverse characters 
may be mixed or interchanged with 2 sets 
of programmable characters. 8 x 8 matrix. 
Written by 8 POKE commands. 5 internal 
connections. Edge connector free for 
plugons. From Haven Hardware. 


Parallel I/O Port. $28. 

Plugs on rear connector between com- 
puter and RAM pack. Configured as 8 
inputs and 8 outputs with LEDs for all 
outputs. Onboard clock. From Haven 
Hardware. 


23 Way Edge Connector. $6. 
Female; gold plated with locator, solder 
on tabs. From Haven Hardware. 


46 Way Edge Connector. $8.50. 
Double female 23 way connectors. 
From Haven Hardware. 


` The ARCADE MASTER...... 


e3 tone generators - 8 octive range 

¢3 channel mixer, amplitude 
controller, and envelope generator 

e Noise generator 

ALL INDEPENDENTLY PROGRAMMABLE! 

e Internal speaker, volume control, 
and audio output jack 

e Requires no additional power supply 

e Complete instruction manual & examples 

¢Can be used with printer, 16K rampak, 
and most other modules 

¢Memory mapped so it can easily be 
programmed in basic using peel & poke 

User selectable to the start of any 4K 
memory location 

e2 Independent, TTL compatible I/O 
ports can be used as general purpose 
input/output, or with joysticks 


2 AMP POWER SUPPLY 


MULTIPLE OUTLET STRIP 


z 


May/June 1983 


SOUND EFFECTS x MUSIC 
& TWO JOYSTICK - 1/0 PORTS 


A&T $64.95 
Plug-in Module for ZX81 and TS1000 


Now you can create complex arcade quality sound effects, write melodies in 3 part har- 
mony, & control the action with one or two Atari compatible joysticks (not included). 


ZX80/81 © TIMEX 1000 e MICROACE 


As you expand your system, you'll need more power to run it. 


Phis supply has tl 54032 a eRe kaka oes SPS-2A -- POWER SUPPLY -- $19.95 
MULTIPLE OUTLET STRIP with built in 2 STAGE TRANSIENT ABSORBER 


PROTECTS YOUR COMPUTER SYSTEM FROM DANGEROUS VOLTAGE SPIKES 
Absorbes transients and surges such as those produced by lightning, switching surges 
and noise spikes. 4 protected A.C. outlets, 15 A.C.B., power switch & pilot light. 
G foot Cord Oka oot bh Wale alae oe S TA4 -- TRANSIENT ABSORBER -- $29.95 


ORGANIZE YOUR COMPUTER WORK STATION $19.95 
Four grounded A.C. outlets, 15 amp C.B., power switch & pilot light. 6 ft. cord. 
Ps ES tle AE RAS SENET LS WRC, SIE Path i haa A E bathe? ba talee 


Send check or money order to: 


HURRICANE ELECTRONICS 


P.0. BOX 237 © LANSING, IL 60438 


include $2.50 shipping/handling per order 
Illinois residents add 6% tax 


INSURANCE RECORDS 
Complete record-keeping of 
household, business belongings; 
i.e., jewelry, electronics, credit 
cards, collectables, everything. 
Your agent needs this tape to help 
you recover from a fire or burglary. 
Multi-tape capacity 


yncMaster 


VU-WRITE TEXT EDITOR 

e Word processing simplified 

e Perfect tool to document your 
spreadsheets and programs 

e Send letters, notes on cassettes 

e 11K available to add, insert, 
delete, move text 


YEARLY DATEBOOK 

e Never forget an important date 
again - i.e., insurance payments, 
anniversaries, etc. 

e List once a month for all needed 
dates. 

e Calc. day of week from date 


FINANCIAL ANALYZER 
Save big $$$ prepaying mortgage 
principal. 
What will your IRA be worth in the 
year 2000? 
What was the real yield on that 
investment? 
All standard interest rate calculations. 


ALL PROGRAMS RUN ON ZX81/TS1000 WITH 16K, PRINTER 
OPTIONAL BUT VERY USEFUL. ALL PROGRAMS DUPLICATED 
TWICE ON ERROR-FREE GUARANTEED CASSETTES. 


$14.95 each cassette + $1.00 shipping 
For VISA/MC Orders Call Toll Free 
800-334-0854 Ext. 888 


in North Carolina, or for more information call 


919-643-7120 or write to: 
P.O." Box 511 


Oak Ridge, N. C. 27310 


We are looking for great programs in all fields. We 
will publish your programs paying top royalties to you, 
if your programs are the best in their field and truely useful. 


117 


Extending, continued... 


Repeat Key Module: $12. 
Solders inside case. From Haven Hard- 
ware. 


Teletype Interface 
1K RAM and up. $30. 

Hardware and software for driving 
20ma teletypes. Machine code driver for 
screen copy and output drives for teletype 
supplied on cassette. 


Olivetti Praxis Interface. $250. 

Hardware and software for driving and 
receiving to and from an Olivetti Praxis 
typewriter. Screen editor under develop- 
ment. 


Logic Analyser. $400. 

8 channel 4MHz logic analyser. Word 
recognizer trigger. Post trigger and pre- 
trigger display, allows manipulation and 
storage of analyser data via the computer 
at low cost. 


Tandy Colour Printer Interface. 
16K RAM. $60. 

Hardware and software driver for 
Tandy 4 colour plotter. Requires external 
+/- 12V supply at 100ma. Driver pro- 
gram supplied on cassette. 


Software Lab East 
The Troubleshooter Series 
16K RAM. 

The Troubleshooter Series consists of 
programs which use artificial intelli- 
gence to assist the user to troubleshoot 
radios, televisions, auto engines, stereos, 
record changers, tape recorders, and 
appliances. The programs also tell the 
user which test to conduct and which 
component to repair. Write for details. 


The Software House 
Joysticks 
Plans and program: $4. 
Plans, program, joystick: $25. 
Detailed EZ to follow plans and pro- 
gram to use an Atari type joystick. 


Spectra Computer Products 
Heatsink. $7. | 

A no frills, fully functional heatsink 
that solves the system failures caused by 
overheating. 


RAM Pack Stabilizer. $1; free with any 
purchase over $10. 

A simple device to stabilize the RAM 
pack and other wiggley peripherals. 


Techomatic, Ltd. 

ZX Analogue to Digital Converter 

16K RAM. £20.00 + s&h + VAT. 
Analogue to Digital Converter allow- 

ing computer access to the “real world” 

such as temperature, sound level, volt- 


118 


age, position, speed, etc. Eight channels 
of analogue input data, each with a 
resolution of one part in 256, opens a 
whole new field of applications. Joystick 
input also accepted. 


Thurnall Electronics 
A-D Converter. POA. 

A based 8 channel A-D converter, may 
be used for computer logging of voltages, 
temperatures, light levels, etc. 


RS232 Interface. POA. 

Used to drive printers, teletypes, etc. 
Full RS232 20MA interface with adjust- 
able BAUD rate. Conversion software 
from Sinclair Basic to ASCII available. 


TMR 

Sensation 

$149.95; price for boards varies. SASE 
for brochure. 

A peripheral system for all Sinclair and 
MicroAce computers. Includes eight 
internal slots for expansion boards, and 
5V power supply. Boards available are: 
Character Generator, Interrupt Con- 
troller, Real Time Clock, Sound and 
Music Generator, I/O Ports, Expanded 
Memory, etc. 


Upstate Labs 
I/O Ports and EPROM Programmer 
Plans: $5. 

Schematic documentation, parts lists, 
and software listing to build a 24 line I/O 
port and then use it to program: Intel 
2716, 2732, 2732A, 2764 and Motorola 
MCM2716 EPROMs. The I/O port is 
based on Intel 8255A (also uses 1 ea.: 
74LS30, 74LS32, 7404). The programmer 
uses only one IC (6N139). 


Wisconsinc Electronics 
Non-volatile Memory with I/O parts. 
Kit: $79. 

Unit provides 6 parallel I/Oports and 
accepts Timex 16K RAM pack. Also ac- 
cepts up to four 2716 EPROMs, 2Kx8 
static RAM, or nonvolatile X2816A 
EEPROMs. Powered by your computer 
or optional 2A power supply ($19). 


32K RAM with I/O parts. $155. 

Two 8-bit input and two 8-bit output 
parts ideal for peripheral or control 
applications. Ports-only unit ($50) may 
be upgraded later to 16K or full 32K 
RAM storage. Optional aluminum 


enclosure. 


Zeta Software 
Update 
$2.50 

Booklet. Information on how to hook 
up a popular game joystick. Includes table 
of possible keys enterable by the joystick 
and key code data to convert Scout 
Fighter to joystick. a” 


Programming, continued... 


Infrared 
Spectrum 16K/48K RAM. £6.75 plus 
s&h. 

Z80 disassembler. Complementary dis- 
assembler to Ultraviolet. 48K version can 
be used at the same time as Ultraviolet to 
give full machine code system. 


Acsembler 
16K RAM. £5.50 plus s&h. 

Z80 assembler. All Z80 instructions are 
correctly assembled and listings can be 
output to the printer. Marketed in the US 
by Cleva Computer Ware. 


Dis-Acsem 
16K RAM. £5.50 plus s&h. 

Z80 disassembler. Works alone or with 
assembler. All Z80 instruction are cor- 
rectly disassembled and listings can be 
output to the printer. Marketed in the US 
by Cleva Computer Ware. 


Aerco 
DA-1 Disassembler 
16K RAM min. $12. 

High speed machine language dis- 
assembler displays Z80 machine code 
and requires only 2K of memory. 


Bob Berch 
The ZX Compiler 
16K RAM min. Cassette: $25 pp. 

A true compiler. Generates a machine 
code program from one written in an 
integer subset of Timex/Sinclair Basic. 
Easy to use. 22 commands, 12 functions, 
256 16 bit variables, single DIM arrays. 
Resulting code may be located anywhere 
in memory. Significantly increases pro- 
gram speed. Two versions on one cassette 
for different memory set-ups. 20 page 
manual. 


The ZX Assembler/Disassembler 
16K RAM min. Cassette: $15 pp. 

A complete machine code development 
package. 8K program resides above 
RAMTOP. Machine code is generated 
from assembly instructions entered in 
REM statements. Standard Zilog mne- 
monics. Pseudo-ops ORG, DATA, EQU, 
RESV, and END. Disassembler includes 
hex editor and single stepper. REM gen- 
erator and binary SAVE/LOAD utilities. 
16 page manual. 


Bug-Byte Software 
ZXAS 
16K RAM. Cassette: $12. 

Assembles all the standard Zilog 
mnemonics. When assembled, the assem- 
bly listings, together with assembled codes 
and addresses, are displayed on the 


SYNC Magazine 


fp 


=) 


screen. Code executed by USR. Program 
occupies 5K at top of memory. Use the 
Z80 microprocessor without having to 
POKE. Full documentation. 


ZXDB 
16K RAM. Cassette: $15. 

Complements ZXAS assembler; com- 
bined MC disassembler and debugging 
program; used with ZXAS leaving 9K 
RAM for programming. Features: DIS- 
ASSEMBLER, SINGLE STEP, BLOCK 
SEARCH, TRANSFER AND FILL, HEX 
LOADER, REGISTER DISPLAY and 
more; executed by one key commands. 


Aspect Editor/Assembler 
Spectrum. £9. 

Aspect is a full editor and assembler 
package. Uses all the instructions supplied 
by Intel. Comprehensive set of pseudo- 
ops provided so that text etc. can be 
included in routines. Code is assembled 
at a fixed address, but can be made to 
execute at any address. Full screen editor 
with automatic checking. Full documen- 
tation. 


Cleva Computer Ware 
Acsembler 
16K RAM. Cassette: $9.95. 
2 pass assembler. For those who wish 


to write their own machine code pro- 
grams. It is designed to run alone, or to- 
gether with the dis-assembler, and/or 
the de-bugging program. These provide 
a system for writing, editing, checking 
and testing machine code programs. 


Dis-Acsembler 
16K RAM. Cassette: $9.95. 

Allows you to read the ZX81/TS1000 
ROM(16K). It is written specifically for 
the Sinclair/Timex computers, and, un- 
like some programs modified for Intel 
8080 dis-acsemblers, it gives full Z80 
mnemonics. 


Gladstone 
ZX Assembler (Z40) 
16K RAM. Cassette: $14.95. 

Full Editor/assembler and monitor. 
Labels may be used instead of any string. 
Features: Line insertion/deletion, insert 
characters, auto repeat on all keys. Mon- 
itor inspects memory, registers, and run 
MC programs. MC program occupies 7K 
at top of memory (From Artic 
Computing.) 


ZX Bug (Z41) 
16K RAM. Cassette: $14.95. 

MC monitor and disassembler. Works 
in hex so addresses are a maximum of 4 


hex bits long. 28 commands. 4K long; 
uses memory from 71E0 to top memory 
(From Artic Computing.) 


Intercomputer Inc. 
Mcoder (PT4001) 
Cassette: $18.95. 

Mcoder is the first compiler for the 
TS1000 and ZX81 computers. Give your 
Basic programs the speed of machine 
language programs by running them in 
compiled form. Simply write and debug 
your Basic program and run it through 
Mcoder. You will see it compiled on the 
screen and have the machine language 
version upon completion. 


Kopak Creations, Inc. 

Z-99 Compiler 

16K/2K RAM. Cassette: $19.95. 
Automatically codes 99% of Sinclair 

Basic into machine code. 


Lamo-Lem Laboratories 
ZX8I1 1K Disassembler 
1K RAM. Cassette: $9.95. 

Disassembler translates each Z80 
machine code instruction into a unique 
key. Look up the key in the disassembler 
manual to find the assembly language 
mnemonic. Translates the 8K ROM, or 
programs of up to 150 bytes. Includes 
Memory Test. 


LENGTH 10-PACK 100-PACK 
C-10 .59EA. .54 EA. 
C-20 .66 61 
C-60 .89 .83 
C-90 $1.29 $1.21 


PREMIUM DATA CASSETTES 
“MANUFACTURERS WHOLESALE PRICES* 


500-PACK 
.45 EA. 
03 
AY 
$1.14 


At last... 
Exciting AND Challenging Computer 
Games for Two Players. 


CONFLICT A total war for two players involving both 
the machinery (armies, missiles, warships) and finance 
(stock market, oil, piracy) of conflict. “/ enjoyed this 
strategy game’ (Computer and Video Games). 


PROVIDE YOU WITH ALL YOUR CASSETTE 
PRODUCTION REQUIREMENTS. 


CUSTOM SOFTWARE DUPLICATION — FOR 
SINCLAIR, TRS-80, APPLE, ATARI — GUAR- 
ANTEED TO LOAD. 


ACTS AUDIO ALSO SELLS HIGH-SPEED 
DUPLICATION EQUIPMENT MODIFIED FOR 
SOFTWARE DUPLICATION. 


ACTS AUDIO, INC. 
70 WEST ILLIANA AVE., 
ORLANDO, FL. 32806 


(305) 423-0338 


Pay by check, Mastercharge or Visa. Add $5 for 
C.O.D. shipments. Florida residents add 5% sales 
tax. No shipping to P.O. Boxes. Shipping by 
U.P.S. to continental USA only. For shipping and 
handling add $2 for 10 pack, $5 for 100 pack, $12 
for 500 pack. 


May/June 1983 


SOFTWARE PUBLISHERS —LET ACTS AUDIO 


GALAXY CONFLICT Raise a fleet of Battle Eoncruisers 
then move from bridge to bridge taking full control and 
responsibility in this battle for the heavens. Born 
galactic rulers will do well. “Galaxy battle sets new 
trend” (Sinclair User). 


Games Include — ZX81 (16K) and Spectrum (48K) 
programs on ONE cassette. Full size professionally 
printed board. Counters and markers. Two pads dis- 
posable maps (Conflict only). Comprehensive instruc- 
tions/rules. 


#Professionally packaged in high quality attractive 
box. 


# Each game only $19.95 inc. Postage or £22 for both 
games. 


# Trade enquiries welcome. 


martech OOM 


9 Dillingburgh Road, Eastbourne 
East Sussex ‘England 


Programming, continued... 


ZX80 1K Disassembler 
4K ROM; 1K RAM. Cassette: $9.95. 
Disassembler translates each Z80 
machine code instruction into a unique 
key. Look up the key in the disassembler 
manual to find the assembly language 
mnemonic. Translates the 4K ROM, or 
program segments stored in a 75 byte 
section of memory. Includes Memory 
Test. 


Super Z 
4K ROM; 1K RAM. Cassette: $9.95. 
Machine code program which adds 7 
new statements to ZX80 Basic: TAB, 
SCROLL, MEM, PAUSE, READ, 
RESTORE, and DATA. All are stored in 
a 350 byte subroutine at line 0 and 
accessed with a USR call. Comes in a zip- 
lock bag with demo program, manual, 
and 2 reference cards. 


Martin Irons 
“DAI” Disassembler. 
12K. Cassette: $9. 

Allows you to browse the powerful 
routines in ROM, check your own ma- 
chine code by converting it to assembler 
statements; converts 812 regular and ex- 
tended opcodes to assembler mnemon- 
ics; no external tables required; jump to 
any point in memory at any time. 
Instructions. 


Using, continued... 


Intercomputer Inc. 
Address Book (HM5003) 
16K RAM. Cassette: $14.95. 

Stores your entire address and phone 
list. Retrieves a list from partial, half- 
remembered information. Adds, changes, 
or deletes names. Will printout an entire 
list in alphabetical or zip code order, 
including mailing labels, in either order 
on a printer. Entries coded for special 
purposes, e.g., card list, will be printed by 
code. 


R. A. Tec. 
Address Book (BHBIO) 
16K RAM. Cassette: $13. 

Keep track of. up to 100 names, 
addresses, and phone numbers per tape. 
Program is Menu and INKEY$ driven. 


Smartware 
ZX List 
16K RAM. Cassette: $9.95. 

This “mailing list/phone directory” 
program allows you to store the names, 
addresses, and phone numbers of up to 
one hundred people. Search for entries 
in a variety of ways. 


120 


Mindware Inc. 
From Eagle Sales 
Machine Code Monitor 
16K RAM. Cassette: $19.95 plus s&h. 
Enter, run, and de-bug machine code 
programs independently of Basic com- 
mands. Enter and de-bug MC instruc- 
tions; then test them in operation. Per- 
forms hexadecimal arithmetic, copies and 
moves blocks of data, converts between 
decimal and hex, examines and modifies 
locations in memory. Maintains a pro- 
tected environment for its own system 
variables and displays. By Taurus Com- 
puter Design. 


Oxford Computer Publishing Ltd. 
Full Screen Editor/Assembler for Spec- 
trum and TS2000. 
16K & 48K RAM. Cassette: $19.95. 
An essential tool for machine code 
writers, this program represents the state 
of the art in terms of full screen input, 
editing, and cursor control, plus 42 col- 
umn display. Features include auto-line 
numbering, full expression evaluation, 
all Z80 mnemonics, text buffer, printer 
output, dec or hex input, all the normal 
assembler directives. 


Scientific Software 
TS1000/ZX81 Assembler/Debugger 
Cassette: $14.95 pp; $19.95 outside US. 


Michael B. Williams 
Information 1000 
8K RAM or more. Cassette: $9.95. 

Store a name, complete address, and 
phone number. Retrieve it later. Number 
of entries is limited only by free RAM. 
Provides search facility, output to printer, 
10 options. Excellent for mailing lists. 


Thomas B. Woods 
ZX Phone Book 
16K RAM. Listing: $4.95. 

Directory holds 720 names; complete 
Add, Change, Delete functions, Auto- 
saving, and more. Documentation gives a 
thorough, easy to understand introduction 
to data base programming techniques. 


Math and Science 


Ako Tech 

Statistical Programs 

Listings: $1.50 each plus SASE. 
Regression, ANOVA, Complete Block, 

Randomized Block, and Latin Squares. 


Arizoftx 
Linearsystems3.0 
16K RAM. Cassette: $14.95 plus $2.00 
s&h. 
Solves set of linear system equations of 


Two-pass, entire Z80 instruction set, 
Zilog mnemonics. Labels, symbols, seven 
pseudo-ops: ORG, DEFB, DEFW, DEFS, 
DEFC, EQU, END. Displays or prints 
listings. Assembles up to 1000 lines/min- 
ute with syntax checking, diagnostics. 
Debugging features include: memory dis- 
play, modification in hex, breakpoint with 
display of all registers, line renumbering. 
Comprehensive manual. Program takes 
6.5K in MC and Basic. 


Sinware 

Hot Z : 

16K RAM or more. Cassette: $19.95; 
EPROMs: $40; plus $2 s&h. 

Machine language editor and disassem- 
bler that gives full screen Z80 assembly 
language listings with user-supplied labels. 
Provides full editing functions and debug- 
ging facilities with over 40 commands. 
Allows single stepping of machine pro- 
grams with full Z80 register display. Loads 
or saves ZX tapes and gives printed 
listings. 


Utilities Engineering 
ROM Reader 
16K RAM. Cassette: $12.45. 

Translates the contents of the Sinclair 
Basic operating system into Z80 mnemon- 
ics, hexadecimal of codes, and “nn” data 
from the PEEKed decimal values. =" 


up to twenty real-, or ten complex-valued 
unknowns. Uses Gaussian elimination 
with partial pivoting to minimize effects 
of roundoff error. Program returns 
measure of sensitivity of solution to ele- 
ment value perturbations. A sophisticated 
engineering quality program. 


Linreg4.0 
16K RAM. Cassette: $10.95 plus $2 s&h. 
Accepts up to 99 pairs of data points 
and computes parameters of straight line 
having best Least-Mean-Square fit to data. 
Menu selected operations enter data, 
compute and display parameters, com- 
pute and display RMS error and cor- 
relation co-efficient, and calculate y- 
values from input x-values using linear 
equation. 


Numerint4.0 
16K RAM. Cassette: $14.95 plus $2 s&h. 
An adaptive quadrature numerical inte- 
gration routine based upon a Newton- 
Cotes eight panel formula. Subinterval 
sizes automatically adjust to meet accur- 
acy requirements, thereby greatly enhanc- 
ing the routines efficiency. User supplies 
integrand function as subroutine. Program 
returns indicator of solution reliability. A 
sophisticated engineering quality 
program. 


SYNC Magazine 


AVC Software 
Ionisation 
16K RAM. Cassette: $6. 

Plots ionisation energies for input groups 
/periods as required for chemistry 
courses. Important patterns are shown 
graphically. 10-12th grade. 


Compucraft 
SIFT I 
2K RAM or more. $29.95 (introductory 
offer). | 

Sift I stands for Statistical Interactive 
system for the Timex/Sinclair 1000 and 
ZX81 computers, Vol I. Sixteen, 2K 
Statistical routines such as: Linear and 
Multiple Linear Regression with trans- 
formations; One-Way, Two-way and 
Latin Square Analysis of Variance; and 
T-tests, plus other Non-Parametric two 
sample tests. A user’s manual (82 pages) 
with worked out examples and inter- 
pretation is included. 


J. R. Carr 
Z Q-1 
16K RAM. Cassette: $16. 

Calculates: 1) Ohm’s law for DC, X, Z, 
real and effective pwr and pwr factor. 2) 
X of C. 3) X of L. 4) X total. 5) Z series or 
parallel and phase angle. 6) Resources. 7) 
Circuit “Q” series or parallel, loaded or 
unloaded. 8) Circuit resistance at 
resources, series or parallel. 9) Solenoid 
coil design. In any routine, give it any two 
known quantities, and it will calculate the 
third. 


Kimtech 
Statistical Pac 
16K RAM. $8.00. 

The Pac consists of four programs 
plus documentation. These programs 
will perform chisquare (goodness of fit) 


calculations, analysis of a dáta set 
including hypothesis testing and con- 
fidence intervals, comparison of two 
data sets using hypothesis testing and 
confidence intervals, and simple linear 
regression including t-value and R?. 


Ksoft 

TS-Art 

16K RAM. Cassette: $12.95 (s&h: $1.50 
U.S., $2.50 abroad). 

A graphics program and a Logo-style 
educational tool that indirectly teaches 
concepts in arithmetic, geometry and 
computer science. Work with a pencil, 
eraser, about 120 brushes, a video 
inverser and a “flicker” by moving them 
in 8 directions or along circles and lines. 
Set any background. Define new graph- 
ics commands. Expand, compress or ro- 
tate. Save or print artwork. 


May/June 1983 


Mindware Inc. 
From Eagle Sales 
Numeric 
16K RAM. Cassette: $24.95 plus s&h. 
All purpose mathematical tool for solv- 
ing equations and plotting graphs: Han- 
dles any formula you can enter from the 
keyboard; plots the graph of any formula; 
solves simultaneous equations; solves 
right angles; calculates arithmetic mean 
and standard deviation for a single list of 
numbers; calculates means and deviations 
for two lists of numbers, plus coefficient 
of correlation between two lists. By R. 
Carey. 


RCO Technical 
Distacalc 
16K RAM. Cassette: $9.95 plus $1 s&h. 
Calculates great circle distance and 
heading from entered latitude and long- 
itude data. File of 250 world cities is up- 
dated each time calculation is made on 
new point. Results given in statute miles, 
nautical miles, and kilometers. Ideal for 
radio amateurs and navigators. Instruc- 
tions. 


Soft Way 
Math and Electronics Tape 1 
16K RAM. Cassette: $14.95. 

Geometry: Areas, Volumes, Perimeters 
of 22 shapes. Graphic trig: Plots X-Y 
Data, Prints Angles and Hypotenuses. 
Resonate circuits: Series and Parallel Cal- 
culations. Ohms law DC: Voltage, 
Amperage, Resistance and Power. PI and 
T Networks: Impedance Matching and 
Attenuators. Temperature conversion: 
Fahrenheit and Celsius. Returns Compo- 
nent Values in Response to your Data. 


Math and Electronics 
16K RAM. Cassette: $14.95. 

6 programs. Resonate Circuits: Series 
and parallel calculations. Geometry: 
Areas, volumes, perimeters of 22 shapes. 
Graphic Trig: Plots X-Y data, prints 
angles and hypotenuses. Ohm’s Law (DC): 
Voltage, amperage, resistance, and 
power. PI and T Networks: Impedance 
matching and attenuators. Temperature 
Conversion: Fahrenheit and Celcius. 


Spectra Computer Products 
E.E 


16K RAM. Cassette: $15 plus $1 s&h. 2K 
version with each section available inde- 
pendently for 2K. 

Electronics Engineering software for 


. engineers, technicians, students, hobbyists 


who wish to learn to use these formulas: 
Includes Ohm’s law and its ramifications, 


MUSIC 
SOFTWARE 


VIRTUOSO features 10 octave 
range, whole to 32nd notes and 
rests at any tempo and YOU 
DON’T HAVE TO KNOW ANY 
MUSIC. Record songs or play 
through TV, amplifier or AM 


radio. For TS1000 and ZX81/2K 
or more. Cassette, guaranteed 
to load, $6.95 pp. Outside U.S. 
$9.95. Mail order only. William 


Don Maples, Dept. C-1, 688 
Moore Street., Lakewood, CO 
80215. 


COSMONICS 


for T/S 1000 and ZX81 computers 


REDUCE LOADING TIME FROM 10 MINUTES 
TO 100 SECONDS WITH CFASTDUET! 
Two programs on one cassette: 

CFASTDATA and CFASTLOAD 


By itself, CFASTDATA fast-saves data; it 
writes data in strings, arrays, or a mem- 
ory location to a cassette, and quickly 
reads that data into programs of your 
choice. 

Use CFASTLOAD with CFASTDATA to quickly 
LOAD programs and data. CFASTLOAD can 


be configured to your needs. 


LOADS easily 

Complete documentation 

Includes sample program 

6 times faster than Sinclair 

LOAD/SAVE commands 

Can be used on inexpensive 

cassette recorders 

No additional hardware required 

Use with 16K or more RAM 

CS-20 CFASTDUET $27.50 + $1.50 P&H. 

CA residents, add sales tax. 
Send SASE for FREE catalog. 


COSMONICS 
P.O. Box 10358, San Jose, CA 95157 


ZX81/TS1000. . FINGERS SLIPPING? 


*Speed Input 


“Enjoy Typing 
“Reduce Errors 


*10 Day Trial 


“ClearTouch” is a thin, trans- 
parent keyboard overlay that 
lets you fee/ key positions—yet 
thin enough not to interfere with 
typing. Easy to install. Makes 
typing a pleasure. Try for 10 
days, if not satisfied, return un- 
damaged for refund. $8.50 + 
$1.50 shp. MC/Visa, check/ 
MO to: 


ClearTouch 
P.O. Box 1136 
Anacortes, WA. 98221 


SAVINGS x SAVINGS 


We are offering quality programs for 
the Timex-Sinclair and ZX81 computers 
written in Canada and sold at 
Canadian prices. 

For the Canadian purchaser, there is 
ro duts; Excise tax or currency 
exchange. 

For all other programers, there is 2 
savings of 20% or more when you send 
a3 money order in Canadian Currency, 
Serd one dollar for our catalog of 
programs and we will subtract that 
from your first order. 


SOPHIA SYSTEMS 
15122 Pheasant Drive 
Surrey, B.C, Canada, VSR 4X6 


GAME CASSETTES 
TIMEX-ZX81 $14.95 EACH 


“MONOPOLY” FAMILY GAME FOR 
UP TO 6 PLAYERS-AVAILABLE IN 
AMERICAN, SPANISH OR BRITISH 
LANGUAGE VERSIONS. “WINGED 
AVENGER” /BST GOLD SEAL 
SPACE GAME. “SPACE TREK” NEW 
RELEASE!! SPACE GAME. “TRAD- 
ER JACK” FANTASTIC FUN GAME- 
BUSINESS LOGIC-SOUTH PACIFIC 
LOCAL. “CASINO” INCLUDES PO- 
KER-MACHINE, SUDDEN-DICE, 
FIVECARD AND CHUCK-LUCK. 

“TEN GREAT GAMES” INCLUDES 
PACMAZE, GOBLER, ASTRO STAR 
DEFENDER, VAMPIRES, SUICIDE, 
MINEFIELD, FROGLER, STARTREK, 

| DICTATOR, BOMBER. 


SAVAGE SOFTWARE PO BOX 441 
TITUSVILLE, FL 32780 


ATTENTION 
ZX81/TS1000 
PROGRAMMERS 


EXCALIBUR SOFTWARE 
WOULD LIKE TO MARKET 
YOUR PROGRAMS. SEND 
DES. AND TAPE FOR CONSID- 
ERATION. IF ACCEPTED, 
ROYALTY CONTRACT SENT 
IMMEDIATELY. PLEASE IN- 
CLUDE $3.00 PROCESSING 
FEE. 


EXCALIBUR SOFTWARE 


RT. 1 BOX CC24 
WALLER, TX 77484 


122 


Tactile Feedback Over lay 


For: ZX 80/81, Timex 1000, or Microace 
** TOUCH TYPING POSSIBLE 
## STOP MISSED KEYS 
## SPEED ENTERING PROGRAMS 
With our easy $o install keyboard overlay 
3.95 


16K Software for 


ZX FROGGIE An excellent version of the 
arcade game. Frogzie must cross the busy 
highway and hop the logs to get home. Full 
screen moving graphics, fast m/c action, 4 
levels, different screens and speeds. Name 
and SAVE three best scores. ------- $14.50 

DRAGON HUNT A maze game played in Dragon 
Caves. You must find & slay 3 dragons.There 
are 15 arrows and a magic sword to help you 
survive the hidden dangers. ------- $12.50 

WORD SINC A word processor for the Sinclair 
or other 32 col. printer. Fast m/c inserts 
variables, lists, moves and justifies. 9000 
characters with 16K, is easily expandable. 

Menu controlled.With instructions.- $12.50 


Four 16K Programs on One Cassette 
MATH TUTOR Add,subtract,multiply & divide. 
Five levels in each. Menu controlled. 
TYPING SKILLS A fun and competitive skill 
improver.Set speed, keep up to the computer 
BI Guide missiles to intercept the Bird 
or what it drops will bring a nasty end. 
ASTRO SMASHER Dodge asteroids, smash enemy 
ships before force shields fail. -- $12.50 
U.S. Orders to: P.Hargrave, Site V, RR 4, 
Nanaimo, B.C., Canada V9R 5X9 


X 


FOR 16K TS 1000/ZX81 
MACHINE CODE LOADING 
ROUTINE WILL STOP ANY 
PROGRAM AFTER LOADING 
ENABLING THE USE OF 
THE SAVE COMMAND 


LISTING $3.00 


KATT’S 
COMPUTERS 


BOX 162 DEPTS 
CHICAGO HEIGHTS, ILLINOIS 
60411 


CONTROL CENTER FOR ZX-80, ZX-81/TIMEX 1000 


PING (MICH. ADD 4%) AB ENGINEERING, 11896 CLAIR, 
HARTLAND, MICH, 48029 (WE’LL BUILD TO YOUR 
SPECS. SEND SASE WITH YOUR REQ.) 


ZX-81/TIMEX 1000 8K _ROM/16K_RAM 
"PERSONAL FINANCES-PARTI" FOR 
COMPOUND INTEREST CALCULATIONS & 
"PERSONAL FINANCES-PART II" FOR 8 
IRA & SIMPLE INTEREST. LISTINGS 
$7.95 EA TAPES $12.95 EA S&H $2. 
SEE, BOX 787, FALLBROOK, CA 92028 


Using, continued... 


conversion between ohms, amps, volts, 
watts, and power. 


Support Systems One 

ELF/I 

16K RAM. $7.95.. 
Electrical/Electronic Formula Pro- 

gram One. With any two of the follow- 

ing: ampere, voltage, or wattage, the 

third unit of measurement can be found. 

Totally menu driven and auto run. 


T-S Systems 
Advanced Math 
16/48K TS2000. Listing: $4 plus large 
SASE. 

Allows you to use a complex multipli- 
cation of more than 2 digits. 


UAS 
Functional Analysis. (C5006). 
16K RAM. Cassette: $8.95. 

Given any function defined in a closed 
form, the program finds its maximums, 
minimums, and zeros over a given range 
of the argument. The function, its derivi- 
tive, or its integral may be evaluated at a 
point and tabulated over a range. 


Zeta Software 
RPN Calculator 
16K RAM. Cassette: $17.45. 

A scientific calculator emulation using 
reverse polish notation. Features include: 
50 storage registers, a visible stack, statis- 
tical functions, and a key to save a cal- 
culation in progress. 


Math Pak 
16K RAM. Cassette: $52.45. 

4 programs. Includes math routines and 
fit, variance analyzer, statistics, and rpn 
calculator. 


Math Routines and FIT 
16K RAM. Cassette: $17.45. 

A general purpose mathematics pro- 
gram for calculating factorials, permuta- 
tions, and combinations, for solving quad- 
ratic and cubic interpolations, and for 
plotting fitted curves of 4 different func- 
tions. 


Variance Analyzer 
16K RAM. Cassette: $17.45. 

A data analysis program for examining 
l- or 2-way AOV and 2-way AOCOV. 
Includes: degrees of freedom, sums of 
squares and products, and means. 


Statistics 
16K RAM. Cassette: $17.45. 

Statistical analysis and data display. 1- 
variable with histogram or 2-or-more- 
variables with plot. Results include: sum, 
variance, standard deviation, error, 
means, skewness, and kurtosis. 


SYNC Magazine 


Games, continued... 


Play against the computer; graphics dis- 
play of cards and option to fold. All cards 
dealt face up with betting taking place 
after 2nd and 3rd cards dealt with highest 
hand so far placing bet. 


New England Software 
Black Jack 
16K RAM. Cassette: $7.95 pp. 

Play against the “dealer” computer. 
Dealer stays on 17 or above, hits on 16 or 
less. Player can stay, hit, split pairs, or 
double down on 10 or 11. Nice graphic 
“cards” are displayed. Computer tallies 
your money total. 


Peak 
Blackjack 
16K RAM. Cassette: $10. 

Practice your strategy. Hit stand, dou- 
ble down, split and take insurance with 
this Nevada casino game. Deals out a 
complete deck before shuffling. 


Savage Software 
Casino: Four Games 
16K RAM. Cassette: $14.95. 

1) Poker Machine: 4 spinning reels of 
slot machines and, like 2) Sudden Dice, 
allows friendly wagering. 3) Five Cards: 
reveals both poker hands retaining betting 
totals. 4) Chuckluck: Bets $5 on the roll 
of the dice. 


Trixieware 
Draw Poker 
16K RAM. Cassette: $20. 

Play while you learn poker. Experts 
can practice strategies. Deals and plays 
four hands; you play the fifth hand. 
“Trixie’s gang” bluff, double-bluff, two- 
time and four-flush you. All “according 
to Mr. Hoyle, Baby!” Lose your shirt; it is 
a rough game. TDK cassettes. 


UAS 
Blackjack Tutor. (C2004). 


16K RAM. Cassette: $7.95. 

Prepare for your trip to the casino 
tables. Let your computer aid you and be 
your tutor. This program provides you 
with drill and strategies that should help 
keep the odds in your favor at.the gaming 
tables. 


Draw Poker Tutor. (C2006). 
16K RAM. Cassette: $8.95. 

Learn opening bid strategy to improve 
your game. Test your bids in an eight 
player game of jacks or better to open 
(Jackpots). Provides a running total of 
your status; a critique of your incorrect 
bids; and practice to improve your 
chances. 


Wildfire Publishing Co. 
Your Fortune in The Microcomputer 
Business, Vols. I, & II. 


- Set for $24.95 + $1.50 s&h. 


Two informative volumes containing 
all you need to know to establish and 
maintain your own microcomputer busi- 
ness. Vol. I, Getting Started, shows the 
practical steps to start your business. 
Vol. II, Growth, Survival, and Success, 
deals with the problems a person faces 
after his business really takes off. 


Game Collections 


Barlog Software 
2K Games Pack 
2K RAM. Cassette: $7. 

Pyramid: Try to stop treasure hunters 
from stealing your gold by throwing rocks 
at them. Invasion from Mars: Protect the 
two manufacturing plants from the alien 
men drifting down towards them. Both 
games are action-type and require SLOW 
mode. Available as listings at $2.00 each. 


Bug-Byte Software 
Game pack casseties: £4 each. 

Program Pack 1. iK RAM. 
8 programs: Digiclock, 9-Lives, Reaction 
Test, Dice, Gobbier, Patterns. 

Program Pack 2. 16K RAM. 
4 programs: Pontoon, Fruit Machine, 
Oxo, Bio-Rhythms. 


LEARN TO SPEAK 


NEW-—FROM THE 
PUBLISHERS OF 
CREATIVE 
CO.4PUTING 
Only $7.95! 


11” x 8%" format. 


pass copies around to your students. Fill in and mail the coupon 
today, and enter the exciting world of Logo! 


e Large, easy-to-handle 


For teachers, students and other computer users 


Logo is the computer language that’s sweeping the country with 
its simple “turtle geometry” way of learning computer literacy. 
And Logo: An Introduction is the new, easy-to-understand be- 
ginner's guide that makes learning and using Logo fun! 

Written in simple language and set in big, easy-to-read type, 
Logo: An Introduction is specifically designed to be used by 
teachers and students who have little or no knowledge of Logo 
or computers. - 

Logo: An Introduction helps computer novices with: 

A Creating simple shapes with the turtle and combining 
them to make more complex geometric forms 
A Learning about “soft” and “hard” saves (temporary and 
permanent computer memory) 
A Playing with symmetry and curves 
A Learning about arithmetic, logic and Cartesian coordi- 
nates 
A Using the idea of recursion—making a simple command 
repeat itself to perform more complex functions 
A Experimenting with words and sentences 
—and more! 

Logo: An Introduction doesn't bog you down or scare your 
Students with complex technical details the way instruction 
manuals do. Instead, this book is written in an open-ended, 
exploratory style that captures the flexible spirit and freedom of 
Logo. 

Use Logo, An Introduction as a supplement to your pro- 
gramming manual, as a sourcebook of ideas, as a primer on how 
to exploit the potential of this powerful language, and as a trea- 
surehouse of suggestions for experiments with Logo. Logo: an 
Introduction is one book that belongs in your classroom or com- 
puter lab—and at only $7.95, it's easy to order more than one, and 


May/June 1983 


e Written by a professional 
educator 

e Full of illustrations, 
examples, hints and tips, 
suggestions and explana- 
tory notes. 


Dept. NB6H, 39 East Hanover Avenue, Morris Plains, NJ 07950 | 
Please send me copies of Logo: An Introduction at $7.95, plus | 
$1.50* shipping and handling, each. #12L 
[_] PAYMENT ENCLOSED $ 

_ dents add applicable sales tax.) 
C] CHARGE MY: 


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(CA, NJ and NY State resi- | 


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*Outside USA add $3.00 shipping and handling. Shipped airmail only. 
[ ] Check here to receive FREE catalog of computing books, maga- 


| | 
| | 
: : 
| SNR NEN te Se R a a e r A eas | 
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| | 
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| 


For faster service, PHONE TOLL FREE: 800-631-8112. 
(In NJ only: 201-540-0445.) 
Also available at your local bookstore or computer store. 


123 


Using, continued... 


Rave Research 
Poly Port 
Kit: $39.95; assembled: $49.95. 

Plugs into back of computer. 6 I/O 
ports useful for many applications. 3 ports 
for our “Polyphonic System” for musical 
synthesizers. Depending on application, 
an output connector or cable may be 
needed. 


Polyphonic System 
2K RAM minimum. $49.95. 
Includes Poly Port and Synthi Port. 


Bach Box 
Kit: $39.95; assembled: $49.95. 

Plugs into back of computer. Hook up 
to any audio amplifier and start com- 
posing your own tunes. Pseudo- 
polyphonic output. Sample tune and full 
instructions included. 


Musical Scales 
2K RAM. Cassette: $8.95. 
16K RAM. Cassette: $14.95. 

Prints out the notes in any one of 8 
scales on any key. 16K program also 
prints diagrams for guitar, bass guitar, 
and keyboards showing where each note 
is to be played and identifies the tonal 
notes. 


Synthi Soft 
2K RAM minimum. Cassette: $14.95. 
Program for a polyphonic music sys- 
tem. Requires musical synthesizer and 
additional hardware. Unlimited expansion 
possible. Uses the computer’s keys as a 
synthesizer keyboard. MC. SASE for 
details. - 


Music Tape 
2K RAM. Cassette: $9.95. 

4 programs. One turns the Sinclair into 
a 2 octave musical instrument; sound 
comes from TV or (better) from mic jack 
plugged into audio amplifier. Musical 


Squares: 12 tone calculator. Chord 


Finder. Mini-invaders Game. 


Alico Products 
Canadian Market Services 

Market your products in Canada where 
you will find an eager market. We help 
small US firms penetrate the Canadian 
market through our offices in the US and 
Canada. For further information, send 
your requirements to: Allco Products, PO 
Box 151, Stn A, Windsor, Ontario, N6A 
6K1, Canada. 


Dealers. 
Mailing lists of TS1000 users. Perfect 
for direct mail marketing. Available for 


124 


R.LS.T. Inc. 
The Parrot. $89.95. 

A simple to use, plugin speech module 
capable of generating all 64 discrete 
sounds of spoken English. By combining 
these sounds (called allophones) in what- 
ever order you choose, you can generate 
words, phrases, sentences, sound effects. 
Supplied with software on cassette 
enabling you to select, string together, 
and pronounce the sounds. Your pro- 
grams can tell the Parrot what to say. 
Complete instructions and examples. 
Write or call for further information. 


Nicholas Scarim 
Music Theory Workbook. 
16K RAM. $495. 

Complete music theory workbook on 
16 easy to load cassettes. Includes: treble, 
bass, and alto clefs; scales, keys, chords, 
meters, rhythm; piano, guitar, recorder 
drills. This package is for music teachers, 
schools, community art centers. It is not 
a teach yourself toy. Write for full details. 


Simulsion 

The Fantastic Music Machine 
and Light Show 

2K RAM. Cassette: $9.95. 

Two special effects programs. Music 
Composer: Transforms the keyboard into 
a 3-octave musical instrument that plays 
music through your TV as you press the 
keys; stores, edits, and plays back 400 
notes (7000 with 16K RAM); has tone, 
tempo, and special effects keys. Light 
Show: Animates a kaleidoscope pattern 
that races outward from the center of the 
screen. 


Sinclair Place 
Big Ears. $99. | 
Speech recognition. Connects through 
I/O port. Microphone and cables 
included. Words are stored as voice pat- 
terns which the system learns from repe- 
tition. Voiceprints occupy about 150 bytes 
each. From William Stuart Systems. 


US, Canada, and oversees. For further 
details send type of names and quantity 
needed to: Allco Dealer Services, PO Box 
43074, Detroit, MI 48243. 


Artisan Electronics 
Easy Eye Filter. Kit: $12.95 plus $2 s&h. 
Front mounting filter creates optic 
yellow screen for black/white TVs and 
monitors. Superior to green or b/w view- 
ing. Yellow light focuses on the eye’s 
retina without as much lens muscle usage. 
Improved contrast and apparent image 
sharpness. Comes with stick on fasteners 


Music Synthesizer and I/O Port. $68. 

Plugs between computer and RAM 
pack. Independently programmable. 
Tone generators 20Hz-100KHz. Noise 
generator programmable from “sub-pink” 
to super “white.” I/O is arranged as two 
8-bit bidirectional ports. Required for 
other Stuart Units. Uncased. From 
William Stuart Systems. 


Fastload. $19.50. 
A program to speed the “learning” of 
Big Ears. From William Stuart Systems. 


Speech Synthesizer. $99. 

Self-contained, including amplifier, 
speaker, and bidirectional computer inter- 
face so other addons may be used. Has 
jack to external speakers if desired. Plugs 
into rear connector. Uses phonemes to 
build up words. Average of 6 bytes will 
store the phoneme codes for a spoken 
word. From William Stuart Systems. 


Music Composer Program. $19.50. 

Helps write and save music programs. 
May be used with or without Music Syn- 
thesizer and I/O Port. From William 
Stuart Systems. 


Syber, Inc. 
Voxcome 
16K RAM. Cassette: $15.95. 

Computer generated speech with res- 
ident vocabulary and complete set of 
allophones to create unlimited phrases 
and sentences; useful for integration into 
your own programs or for recording 
computer generated messages for an 
automatic phone answering system. 


Thurnall Electronics 
Sound Unit. POA. 

Programmable sound unit with built in 
loudspeaker, allow programmable gener- 
ation of a whole range of rounds from 
music to special effects. 


Miscellaneous Products and Services 


in 10 x 12 inch size to trim to smaller 
sizes; larger sizes on special order. 


Bob’s 

Electronic Circuit Design Programs 

16K RAM. Cassettes: $15.95 ea. plus 
$1.05 s&h. 

Programs for C.A.D. of active filters 
(Bessel, Butterworth, Chebyshev); pads 
and attenuators; state-variable, stagger- 
tuned, and notch filters; amplifiers, 555 
timers, yagi antennas; regulators; and 
heat sink parameters. Many draw sche- 
matic on screen. $1 plus SASE for details. 


SYNC Magazine 


ses 


Computa-Dek 
Custom-designed Attache Case 
$34.95 plus $3.50 s&h. 

Heavy plastic, aluminum frame case; 
form fitted for computer, cassette recor- 
der, 16K RAM, power pack, TV adapter, 
and cords. Two pocket legal size file 
section in lid. Case is dust proof and may 
be locked. 


Computer Engineering Services 
Software Duplicating Services 
Price varies. 

Computer Engineering Services offers 
complete software duplication on cassette 
for fast and reliable software to your 
customers. 


Computer-Wear Software 
Custom Programs 

Owners: Do you need specific program 
algorithms for your business situation? 
Teachers: Do you need specific software 
to illustrate educational concepts or rein- 
force learning skills? Then contact us for 
fast, reliable, inexpensive custom- 
designed software. 


Data-Assette 
Blank Computer Cassettes. $1. 

Both leader and leaderless available. 
Do not waste time or tape. For short 
programs, tapes start in at C-5 (2 1/2 
minutes per side), C-10, C-12, C-15, C-20, 
C-25, C-30, C-35, C-40, C-45. 


E-Z Key 
Aluminum Enclosure-EC11. 
$25 + $4 s&h. 

A custom made enclosure that you 
can put your computer in; measures 
IIX IX 3.5 inches. 


Aluminum Enclosure-EC14 
$30. + $4.0 s&h. 

A custom made enclosure that you 
can put your computer in; measures 
1493.5 inches. 


Fulcrum Products 
T-Shirts and Sweatshirts 
Prices range from $8-20. 

Available for ZX81 fans; beautifully 
hand airbrushed multi-colored designs 
against outer space scenes. Slogans: “I’m 
a Micro Addict,” “Microcomputers Take 
You into Another World.” 


Microwave 

Retail Shop; comprehensive range of 
hardware, software and books support- 
ing Sinclair ZX81 and Spectrum 
computers. Items available from all 
sources. The friendly to user store! Try 
before you buy from the U.K.’s first and 
largest Midlands Region specialist home 
computer shop. 


May/June 1983 


Mindware Inc. 
From Eagle Sales 
Slide Show 
16K RAM. Cassette: $22.95 plus s&h. 
Create your own video slide shows for 
retail displays, seminars, and exhibits. 16 
different displays with large and small 
letters and a wide variety of graphic ele- 
ments. Display can run continuously. 
Adjust the length of time each display. 


Mohr & Associates Corp. 
Mac-Briefcase. $149.95. 
Mac-Briefcase. $49.95. 

A sturdy ABS preformed briefcase. 
Insert your Sinclair components and you 
have yourself a briefcase computer. Fully 
wired (110V; 60Hz). Pockets for tapes, 
TV transformer, recorder, 16K RAM 
pack, computer’s printer. 


Nanosecond Computer Services 
EZ-Mail (EZ-1) 
64K RAM. Cassette: $19.95. 

Allows you to let E-Com (Electronic 
Computer Originated First Class Mail) 
“Sign, seal, and deliver” your mail for less 
than you are spending now. This program 
will transmit to the Post Office the name, 
address, and contents of a letter. In turn 
the Post Office will print, fold, insert, 
seal, and deliver the mail within 2 days 
for $0.26 for the first page and only $0.05 
more for the second page. Postage, paper, 
and envelopes included. 


Pecos Star Co 
ZX81 T-Shirts 
$7.50 pp. 

White T-shirts sport the Sinclair name 
in black and the ZX81 logo in red. 50 
percent cotton; 50 percent polyester. 
Sizes: S: 34-36; M: 38-40; L: 42-44. 


Powers Associates 
Compulator Package. $259. 

Complete portable, secure TS1000 unit. 
Can be ordered in several ways. Basic 
unit includes: 5” monitor, cassette 
recorder, switches, case, and single power 
plug. Your TS1000 snaps into place. Can 
add TS2040 printer and other peripherals. 


R. Panwar 
Custom Programming 

If you have a need to modify any Basic 
program for your needs or a Basic pro- 
gram written for your particular situation, 
write for details. 


Software Development Associates 
Microsette Cassettes for Computers 
Write for further details. 

Computer grade cassettes in C-10 and 
C-20 lengths. Feature: see through 


g FREE A 
Non. a high quality 3 38 min. computer Ee 


de cassett REE with ever 
e y a selection parchased” 


DISCOUNT PRICES 


-ORGANI ZER 
—CHECKBOOK MANAGER 


HUNDREDS MORE- SEND FOR OUR FREE 


HARDWARE DISCOUNTS !! 


-TINEX/SINCLAIR 16808 (COMPUTER > 
-TINEX/SINCLAIR 1616 €16K_RAN> 
-ZENITH GREENSCREEN (12" Z¥H121)* $99.95 


+ WITH FREE PLANS TO MODIFY YOUR 
SINCLAIR FOR YIDEO OUTPUT 


-FROGGER $17.95 

-PINBALL $12.95 

—GULP $15.95 

-LABYRINTH $15.95 

-GRINS FAIRY TRAILS $ 8.95 

-YU CALC $18.95 
$15.95 
$14.95 
c 


> 
i] 
> 
pm 
© 
(T 


SINCLAIR SUPPLY SHACK 


FOR CATALOG SEND TO: 
SINCLAIR SUPPLY SHACK 


22626 WOOLSEY DR 
HOYI, MI. 48656 


BRONZE STAR SOFTWARE 
ANNOUNCES 


ZT 


A hidden maze game that 
asks you to help little ZT to 


find home. 


Different each time 
Four Levels of play 
$7 on cassette 16K 
SASE for more info. 


P. O. BOX 265 
Chicago Rdg. IL 60415 


EDSON ELECTRONICS OFFERS 


Educational programs for grades 
1-4 that reinforce what they learn in 
school. We also offer a digital dis- 
play load monitor for monitoring 
data from the cassette to the 
computer. 


Write to 
Edson Electronics 
P.O. Box 151211 
Tampa, FI. 33684 
for free info. 


The Raub = 


Jor 76K action 
see dédtail desdipl (Ks 
LA Lhe Buyers Directory 
LISTING— $2 
CASSETTE TAPE— $7.50 
THE LAMB'S SOFTWARE 

1469 AALBORG WAY 
SOLVANG, CA. 93463 


125 


SERIOUS PROGRAMMERS 


"MUST-HAVE" UTILITIES 
For ZX-81 and T/S 1000 Computers 


Ee N ee E A 
FILE*SYS $10 
Read/Write Cassette Data Tape Files 
(fast, flexible, reliable) 


FILE*BASIC $15 
Save/Merge/Erase BASIC Segments 
(includes FILE*SYS functions) 


FILE*VARS $5 
Save/Restore Strings & Arrays 
(requires FILE*SYS or FILE*BASIC) 


BASIC*OLAY $10 
Overlay/Copy BASIC Segments 
(permits full use of 64K RAM) 


Simple user interface via USR function 
Well-documented user manuals 


Available ontape cassette in relocatable machine lang. 
SS ES VRE EE EE 


SASE for info Check or MO delivers now 


NY 
ic 


Sirius Ware 


6 Turning Mill Road 
Lexington, MA 02173 


FROGRAMERS 


Every Frogramer has written 3 
program someone else would buy, 


We will package and promote your 
usable programs and pay you 2 
competative royalty, 


Send a description of your 
program to our office, The sooner 
you submit your work, the sooner 
we can promote it for you ! 


SOPHIA SYSTEMS 
15122 Pheasant Drive 
Surrey, B.C. Canada, VOR 4X6 


ZX80 AND MICROACE W/ 8K ROMS 
“Assault on Darccos 16K” $7.97 
“Assault on Darccos 6K” $7.96 
“Atan 2K” 


ALL ON CASSETTES /SHIPPING INC 
A,T&A Comp-U-Ware 


a 2712 G. Street, Middletown, Ohio 45042 : 


CURRY COMPUTER 
ZX81 and T/S 1000 
Software & Hardware 


Write for FREE Catalog 
Over 60 Programs/Keyboards/Rampacks 
DEALER INQUIRIES WELCOME 
5344 W. Banff Ln./Glendale, AZ 85306 
1-602-978-2902 


| am selling Software for very cheap 
prices: Call or write for free details: 
914-969-7750 or 

Robert Cannon 

309 N. B’way 

Yonkers, N.Y. 10701 


Jerry and Neil nonbelievers 


126 


MAKE MORE 
MONEY 


STOCK MARKET PROGRAM HELPS YOU INVEST, 
MANAGES YOUR PORTFOLIO, AND MAINTAINS 
RECORDS OF SECURITIES YOU'VE BOUGHT 
AND SOLD. HANDLES OVER 80 SECURITIES, 
ANALYSIS PROVIDES 12 DIFFERENT LISTINGS, 
GAINS, LOSS, DATES, YIELDS, AND MORE. 
ON SIDE 2 OF CASSETTE A PROGRAM FOR 
FORECASTING MARKET TRENDS. 

16K RAM...CASSETTE $9.95 + 50¢ S+H 


TELETEK CO. 


15 CENTRAL WAY, SUITE 169 
KIRKLAND, WA 98033 


WASHINGTON RESIDENTS PLEASE ADD SALES TAX 


£33 2D 
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CoG ae 
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Tis -cose 
Geo A 29538 
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SNE LO 
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(SN eG Oro $ 
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Soas- Lo 
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TIMEX/SINCLAIR 


SINCLAIR ZX81/TS 1000 16K “ALPHA 
BASE” (on Cassette). Command your 
spacecraft from orbit to “ALPHA BASE” 
and return. Difficulty levels, impressive, 
challenging, $8.95. MICROGRAFIX, 306 
Double Tree, Lewisville, TX 75067. Other 
software available. 


TS1000 $64. BUSINESS SOFTWARE INTER- 


$1.00. MICHIGAN RESIDENTS INCLUDE| 


SALES TAX. 


NANOSECOND COMPUTERS SERVICES 
713 DAVID WHITNEY BUILDING 
DETROIT, MICHIGAN 48226-2060 


week MONEY SAVING COUPON ftrt 


$2 OFF EACH COMPUWIZ CASSETTE YOU BUY 
1t See GAMES section of this issue. 
Serd SASE and receive our list of 
products and a FREE machine code 


utility program. 


COMPUWIZ SOFTWARE 
PO Box 390078, Mt. View, CA 94039 
kkk SEND YOUR ORDERS TODAY! *aa% 


Miscellaneous, continued... 


smoked ABS plastic case, internal win- 
dow, flanged and crowned Delrin rollers 
on steel pins, polyolefin slip sheets, 
mumetal magnetic shield, 5 screw con- 
struction, and error free tape for record- 
ing densities of all personal computers. 


Microsette Cassettes for Audiophiles 
Write for further details. 


Microsette Diskettes for Computers 
Write for further details. 


Syncware Company 
Common-Emitter Transistor Amplifier 
16K RAM up. $20. 

Package includes cassette and docu- 
mentation for design and analysis of CE 
transistor amplifiers. Biasing, stability, 
frequency response, input/output resis- 


_ tances, power dissipation, and thermal 


effects taken into account. Prints sche- 
matic and Hybrid-Pi equivalent circuit, 
stores up to five different transistor spec 
sheets. 


Traffic Technology Limited 
Sinclair ZX81 Desk Console 
$40 plus $10 s&h. 

A work station which assembles, inter- 
connects, and stores in an orderly manner 
the ZX81, power unit, printer, cassette 
recorder, cassettes, pencils, 16K RAM 
Pack if used. An on/off switch with LED 
indicates power on and a second switch, 
the SAVE/RUN-LIST/LOAD verify 
switch simplifies saving and loading pro- 
grams. 


Sinclair ZX Spectrum Desk Console 
$52 plus $10 s&h. 

A work station which assembles, inter- 
connects, and stores in an orderly manner 
the Spectrum, the power unit, printer, 
RS232 interface, joystick control, 2 micro- 
drives cassette recorder, cassettes, and 
pencils. An on/off switch with LED indi- 
cates power on and a second switch, the 
SAVE/RUN-LIST/LOAD verify switch 
simplifies saving and loading programs. 


TSG Enterprises 
Mailing Lists: USA User Groups (about 
90 and growing): $5 pp. Software Sup- 
pliers (about 250 and growing): $20 pp. 
Hardware ‘Suppliers (about 100 and 
growing): $10 pp. 


Matthew Zenkar 

Gold Electroplating. $5 plus $3 s&h. 

24 Karat Gold Electroplate for the edge 
connector on the ZX80, ZX81, TS1000, 
and ZX Spectrum. This will end RAM 
pack crashes which are caused by edge 
connector tarnish, not wobble. Send 
SASE for details before sending your 
unit. 


SYNC Magazine 


oe 


Get the most from your SINCLAIR 


~ 


Please send books listed below: 


Sng 
onal Applications 
SE AA 3 pry 


Oy Haden Mauader 
Uyeaiivs Campating Preas 


| The ZX81 Companion 
by Bob Maunder 


The ZX81 Companion follows the same 
format as the very popular ZX80 
Companion, and assists the ZX81 or 
Timex Sinclair 1000 user in four appli- 
cations areas: graphics, information 
retrieval, education and games. This 
practical guide contains scores of fully 
documented short routines plus com- 
plete programs and a disassembled 
listing of the ZX81 ROM Monitor. 
“Thoughtfully written, detailed, and 
illustrated with meaningful programs.” 
—MUSE 

512" x 8", Softbound. #17P $9.95 ($2.00) 


Postage and handling charges appear 
in parentheses ( ) next to price of 
book. 


Outside U.S.A. add $3.00 per order— 
shipped airmail only. 


or Timex Sinclair with these practical books from Sync! 


Getting 
Acquainted 
With Your 


ZX81 


More than 80 Programs 


by Tim Hartnell 
Creative Computing Prees 


Getting Acquainted With 
Your ZX81 
by Tim Hartnell 


This informative volume for the new 
ZX81 or Timex Sinclair 1000 user con- 
tains more than 80 programs to help the 
reader get the most from his Sinclair 
computer. Game programs include 
Checkers, Alien Imploders, Blaster- 
mind, Moon Lander, Breakout, Star 
Burst and Derby Day. The book also 
shows programs for cascading sine 
waves, plotting graphs and tables, data 
sorting, equation solving, plus the use 
of PLOT, SCROLL, PRINT, TAB, PEEK, 
POKE and much more! 

52" x 8", Softbound. #15Y $9.95 ($2.00) 


The Gateway Guide to the 
ZX81 and ZX80 
by Mark Charlton 


The Gateway Guide is a practical pro- 
gramming manual for the beginner that 
furnishes over 70 fully documented pro- 
grams. The majority of the programs 
have been written for easy conversion 
from machine to machine (ZX81 or 
Timex Sinclair 1000, 4K ZX80 or 1K 
ZX80). The Gateway Guide describes 
each function and statement, illustrates 
it with a demonstration routine or pro- 
gram, and combines it with previously 
discussed material to help you under- 
stand your computer. 

52" x 8", Softbound. #160 $9.95 ($2.00) 


Computers for Kids (Sinclair Edition) by Sally Larsen 


This new edition of Computers for Kids is written specifically to introduce 
children aged 8 to 13 to the ZX81 or Timex Sinclair 1000. The book 
requires no previous knowledge of algebra, variables or computers, and it 
enables a youngster to program a Sinclair in less than an hour. There’s 
also a section for parents and teachers. “Computers for Kids is the best 
material available for introducing students to their new computer.” 

—Donald T. Piele, Professor of Mathematics, 

University of Wisconsin-Parkside. 

8'’2"xT1", Softbound. #12S $4.95 ($1.00) 


Also available at your local bookstore or computer store. 


O ENCLOSED IS $ 


Card No. 
Signature 

Print Name 
Address 
City/State/Zip 


O Check here for FREE Creative Computing Catalog. 
For faster service, PHONE TOLL FREE: 800-631-8112 


(In NJ only: 201-540-0445) 


O CHARGE MY: O American Express O Visa O MasterCard 


Creative Computing Press Dept.ND3F 39 East Hanover Ave., Morris Plains, NJ 07950 


-i eatit 


. CA, NJ and NY State residents i 
add applicable sales tax. 


Exp. Date 


Abacus Electronics 
186 St. Helens Ave. 
Swansea, West Glam 
U.K. 


AB Engineering 
11896 Clair 
Hartland, MI 48029 


Abersoft 

7, Maes Afallen 
Bow Street, Dyfed 
U.K. S724 5BA 


ACS Software 

7, Lidgett Crescent 
Roundway, Leeds 
West Yorkshire 
U.K. LS8 1MN 


Stephen Adams 

1, Leswin Road 

London 

U.K. N16 7NL 
254-1869 


Advanced Digital Innovations 
2156 W. Behrend Dr. 
Phoenix, AZ 85027 


Advanced Interface Designs 
PO Box 1350 
State College, PA 16801 


Aerco 

Box 18093 

Austin, TX 78760 
(512) 385-7405 


Ako Tech, Dept. sl 
1613 Dayton Rd. 
W. Hyattsville, MD 20783 


Allco Products 
PO Box 43074 
Detroit, MI 48243-0074 


E. Alvarez 
PO Box 1025 
Oviedo, FL 32765 


Amanda Systems 

PO Box 118 

Holmdel, NJ 07733 
(201) 264-3339 (eve) 
(201) 949-3879 (day) 


American Micro Products, Inc. 
705 N. Bowser, Suite 121 
Richardson, TX 75081 

(214) 238-1815 


Apropos Technology 

350 N. Lantana Ave. 

Suite 821 

Camarillo, CA 93010 
(805) 482-3604 


128 


Directory of Suppliers 


Arizoftx 

6501 E. Monterosa 

Scottsdale, AZ 85251 
(602) 949-0494 


Artisan Electronics 
PO Box 6631 
Portsmouth, VA 23703 


Asia Tsusho Co., Ltd. 
7-6, 1-chome 
Soto-Kanda, Chiyoda-ku 
Tokyo, Japan 

(03) 253-5948 


Atto-Soft 

832 E. Third St. 

Galesburg, IL 61401 
(309) 343-4114 


Audiograph Co. 

3584 Leroy 

Ann Arbor, MI 48103 
(313) 769-6859 


AVC Software 
PO Box 415 
Birmingham 
U.K. B17 OTT 


Bernard Babani (Publishing) 
The Grampians 

Shepherds Bush Rd. 
London U.K. W6 7NF 


Banta Software 

8088 Highwood Way 

Orangevale, CA 95662 
(906) 722-4895 


Barlog Software 
401 N. Geyer Rd. 
Kirkwood, MO 63122 


Basco 

289 Baxter Lane 

Milford, CT 06460 
(203) 874-0065 


BASICare Microsystem Ltd. 
5 Dryden Court 
London 
U.K. SE11 4NH 

001-735-6408 

Note: The Organic Micro 
modular system based on the 
Persona is available in the U.S. 
through Gladstone Electronics, 
Integrated Data Systems, and 
Sinclair Place. 


Bob Berch 

19 Jaques St. 

Rochester NY 14620 
(716) 244-0533 


Bi-Pak 

PO Box 6 
Ware, Herts 
U.K. SG12 9AG 


Birkhauser Boston, Inc. 

380 Green St. 

Cambridge, MA 02139 
(617) 876-2337 


Bob's 
451 Center St. 
Lewiston, NY 14092 


Bomis Prendin Software 

PO Box 28550 

Washington, DC 20005 
(703) 548-8158 


Russell Brewer 
26630 Mill Rd. 
Frazeysburg, OH 43822. 


Bronder Ent. 
2444 N. 41st St. 
Milwaukee, WI 53219 


Bronze Star Software 
PO Box 265 
Chicago Ridge, IL 60415 


Bob Brown 
53 Cliff Ln. 
Levittown, NY 11756 


E. Arthur Brown Co. 
1702-B Oak Knoll Dr. 
Alexandria, MN 56308 


Brown Cottage Industries 

5486 Bright Hawk Court 

Columbia, MD 21045 
(301) 997-5859 


Bug-Byte Software 

100 The Albany 

Old Hall Street 

Liverpool 

U.K. L3 9EP 
Note: Prices 

s&h. 


include VAT 


Byte-Back Co. 
Rt. 3, Box 147, Brodie Rd. 
Leesville, SC 29070 

(803) 532-5812 

Note: $4.95 s&h per order. 
Visa/MC. 


Bytesize Computer Products 
PO Box 21123 
Seatle, WA 98111 


CAI Instruments Inc. 

PO Box 2032 

Midland, MI 48640 
(517) 687-7343 


Calliope Software 
4130 Coe Dr., NE 
Albuquerque, NM 87110 


J. R. Carr 

1314 Harrison 

Sunnyside, WA 98944 
(509) 837-2343 


John B. Carson, Jr. 
11200 Lockwood Dr., No. 307 
Silver Spring, MD 20901 


Cases Computer Simulations $ 
14 Langton Way 

London 

U.K. SE3 7TL 


Centronic Inc. 

1101 Bristol Rd. 

Mountainside, NJ 07092 
(201) 233-7200 


Chesapeake Systems Corp. 
PO Box 546 
Columbia, MD 21045 


Christian Software 
Box 547 
Bettsville, OH 44815 


Cinevision Systems 
PO Box 546 
Montebello, CA 90640 


ClearTouch 

PO Box 1136 

Anacortes, WA 98221 
Note: Visa/MC. 


Cleva Computer Ware 

PO Box 2736 

Brooklyn, NY 11202 
(212) 875-1207 


J. W. Collins 
6025 Hampstead Drive West 
Columbus, OH 43229 ¢ 


Comprocsys, Ltd. 

29 Campden Rad. 

S. Croydon, Surrey 

U.K. CR2 7ER $ 


Compucraft 
Box 149 
Hinsdale, NH 03451 


CompuSoft Publishing 
535 Broadway 
El Cajon, CA 92021 
(619) 588-0996 
(800) 854-6505 (orders only) 


SYNC Magazine 


Compusound 
32 Langley Close 
Redditch, Worcs 
U.K. 

0527 21439 


Computa-Dek 
6009 Kenwood Dr. 
Nashville, TN 37215 


Computer Continuum 

301 16th Ave. 

San Francisco, CA 94118 
(415) 752-6294 


Computer Engineering 
Services 

PO Box 1222 

Show Low, AZ 85901 
(602) 537-7522 


Computer-Wear Software 

PO Box 1059 

Riverdale, NY 10471 
(212) 543-1935 


Computronics 
Box 117 
Okemos, MI 48864 


Cosmonics 
PO Box 10358 
San Jose, CA 95157 


Cottage Technology 
5720 W. Little York 
Suite 178 

Houston, TX 77091 


CRC Software 

2901 Auburn Rd. 

Auburn Hgts, MI 48057 
(313) 852-3711 


Creative Computing Press 

39 E. Hanover Ave. 

Morris Plains, NJ 07950 
800-631-8112 (orders only) 
(201) 540-0445 (in NJ) 

Note: Visa/MC/AE. Write for 
free catalog. Outside U.S. s&h 
is $3 per order; shipped airmail 
only. 


Verlin K. Cross 
2842 County Rd. 300 
Leadville, OH 80461 


Custom Electronics 
Device Corp. 

312 E. Wisconsin Ave. 

Suite 620 

Milwaukee, WI 53202 


Data Assette 
56 S. 3rd St. 
Oxford, PA 19363 
(215) 932-4807 
(800) 523-2909 
(outside PA) 


Daw Software 

78 Aberdeen PI. 

Clayton, MO 63105 
(314) 862-0129 


May/June 1983 


DCP Microdevelopments 
2 Station Close 
Lingwood, Norwich, 
Norfolk 

U.K. NR13 4AX 


Dem Co. 

211 Nature Trail 

Chapel Hill, NC 27514 
(919) 933-9362 


Digital Integration 

22 Ash Church Rd., Ash 

Aldershot, Hampshire 

U.K. GU12 6LX 
0252-518269 


Dillons University Bookshop 

1 Malet St. 

London 

U.K. WCIE 7JB 
01-636-1577 


Ken Doggett 
3426 H Fairway Oaks Dr. 
Lawrenceville, GA 30245 


A. Doty 
PO Box 11023 
Ferguson, MO 63135 


Double “H” Electronics 
195 Lelani 
San Antonio, TX 78242 


Down East Computers 
PO Box 3096, Dept. B 
Greenville, NC 27834 


DRRP 
PO Box 3664 
Peabody, MA 01960 


Charles Drury 
40 Westgate #5 
Chestnut Hill, MA 02167 


D.S.B.C. 

PO Box 1251 

Dolan Springs, AZ 86441 
(602) 767-3792 


Dunrobin Software 
37 Rivaldsgreen Crescent 
Linlithgow, West Lothian 
Scotland, U.K. 

Linlithgow (050684) 2847 


Eagle Sales Co. 
15 Tech Circle 
Natick, MA 01760 


E & S Software 
28 Midland Ave. 
Budd Lake, NJ 07828 


Emvee Software 
10 Mythop Rd. 
Lytham, Lancashire 
U.K. FY8 4JD 

Note: Airmail postage paid. 
Listings ZX Printer produced. 
Any 2 listings: $11; all 3: $15. 


Ener-Z Co. 
PO Box 635 
Ft. Washington, PA 19034 


EPROM Services 
3 Wedgewood Dr. 
Roundhay, Leeds 
U.K. LS8 1EF 

(0532) 667183 

Note: Extensive EPROM mat- 
erials available. Write for 
details. 


D. Ernst 
11 Fairfield St. 
Montclair, NJ 07042 


Evansoft Associates 
1246 Elmwood Ave. 
Evanston, IL 60202 


Executive Workshop 
7420 S.E. Woodstock Blvd. 
Portland, OR 97206 

(503) 771-8564 


Expense Cutters Products 

PO Box 9543 

Raytown, MO 64133 
(816) 353-1690 


E-Z Key 
Suite 75, 711 Southern Artery 
Quincy, MA 02169 

(617) 773-1187 


FileSixty 

2 Chippenham Mews 
London 

U.K. W9 2AN 


Fisher-Marriott Software 
9c Abbey Hill 
Kenilworth 
Warwickshire 
U.K. CV8 1LW 

(0926) 511254 


Florida Creations 

Dept. SBG 

PO Box 16422 

Jacksonville, FL 32245 
(305) 631-5568 


Fresh Tracks 

27 W. Rayburn Rd. 

Millington, NJ 07946 
(201) 647-0970 


Friendly Computer 

Box 122 

Wellingford, PA 19086 
(215) 872-2061 


Fulcrum Products 
14 Steep Ln., Findon 
West Sussex BN14 OUF U.K. 


Ganhart/EARTHings 

115 N. Rocky River Dr. 

Berea, OH 44017 
(216) 234-2662 


Blaine Geddes 
238 King St. 
Truro, Nova Scotia 
Canada B2N 3L6 


Glassware-D. Glass 
Rt. 14, Box 369 
Johnson City, TN 37615 


Nick Godwin 

4 Hurkur Cresent 
Eyemouth, Berwickshire 
Scotland TD14 5AP 


Graphicomp 
55 York St. 
Toronto, Ontario 
Canada M5J 1R7 

(416) 363-5377 

Note: Carries: 1) extensive 
hardware line; 2) wide selection 
of educational software from 
AVC at $14.95 per cassette. 


Wayne Green Books 
Peterborough, NH 03458 
(603) 924-9471, x144 


Walter Grundy 
Rt 2, Box 708B 
Harrisonville, MO 64701 


H & H Electronics 
3379 Rt. 46-6D 
Parsippany, NJ 07054 


H. P. Hargrave 
Site V, RR4 
Nanaimo, B.C. 
Canada VƏR 5X9 
(604) 245-8141 


G. M. Harris 

28 Ridgway Rd. 

Farnham, Surrey 

U.K. GU9 8NW 
0252 714930 


J. L. Hartwell 
540 Haskins Rd. 
Bowling Green, OH 43402 


Haymarket Software 
PO Box 14026 
Jacksonville, FL 32238 


Heath Computer Services 

950 East 52 South 

Greentown, IN 46936 
(317) 628-3130 


Hensley and Associates 

Box 334 

Asheboro, NC 27203 
(919) 381-3320 


Hilton Computer Services 
14 Avalon Rd., Orpington 
Kent 
U.K. BR6 9AX 

Orpington 35101 


M. C. Hoffman Co. 
PO Box 117, Dept. SC3 
Oakland, NJ 07436 

(201) 342-9370 (after 6 pm) 


129 


Suppliers, continued... 


Horizon Simulations 
789 S. Green Bay Rd. 
Lake Forest, IL 60045 


Human Engineered Software 
71 Park Lane 
Brisbane, CA 94005 

(415) 468-4110 


Hunter 

1630 Forest Hills Dr. 

Okemos, MI 48864 
(517) 349-5650 (eve) 


Hurricane Electronics 
PO Box 87 
Dolton, IL 60419 


InfoCenter 
4807-16 
Lubbock, TX 79416. 


Instant Software 
Rt. 101 & Elm St. 
Peterborough, NH 

(603) 924-9471 


Integrated Data Systems 
11 Brighton Ave. 
Toronto, Ontario 
Canada M4M 1P3 

Note: Minimum order: $25 
plus $1.50 s&h per order. Dis- 
tributor for: Audiograph, Bi-Pak, 
Bug-Byte, Byte-Back, Data- 
Assette, Dean, Ezra Group Il, 
Graphicomp, HES, Integrated 
Data Systems, Intercomputer, 
International Publishing and 
Software, JRS Software, Kayde, 
Memotech, Oasis Software, 
Orbyte, R.1.S.T., Simulsion, Sin- 
clair, Softsync, Timeworks, 
Zodex. Send for price list of 
over 200 items. 


Intercomputer Inc. 
PO Box 90, Prudential Center 
Boston, MA 02199 


Interface Innovations 
4372 Casa Brazilia 
Suite 201 

St. Louis, MO 63129 


Martin Irons 
46 Magic Circle Dr. 
Goshen, NY 10924 


Jenn Products 

Box 246 

Harrison, ME 04040 
(207) 583-4819 


Jeu Intelligent 
PO Box 71 
Glasgow, VA 24555 


J.L.K. Software 
6 Dufferin Place 
St. John’s, Nfld. 
Canada A1A 2V1 


130 


JPR Software 
PO Box 4155 
Winter Park, FL 32793 
Note: Free catalog. Cas- 
settes: $9.95. 


Just Drop in Software 
522 Rolling Ridge 
Duncanville, TX 75116 


Just Games 
172 Fifth St. 
Stamford, CT 06905 


Kaltek 
Box 15642 
Rochester, NY 14615 


Kamel Technology 
2802 W. Bay Area Bivd., #2106 
Webster, TX 77598 


Katt’s Computers 
Box 162, Dept. R. 
Chicago Heights, IL 60411 


K.D.V.H.E. Publishers 
PO Box 6788 
Chicago, IL 60680 


Kimtech 

1608-23rd Ave., N.E. 

Minneapolis, MN 55418 
(612) 789-6226 


KMC Programs 
97 Catharine St. 
Cambridge 

U.K 


Comberton 2779 
Note: Any two programs: £4. 


KML, Inc. 
Box 1147 
New Brunswick, NJ 08903 


Kopak Creations, Inc. 

119 Peter St. 

Union City, NJ 07087 
1-201-864-4410 


Ksoft 
845 Wellner Rd. 
Naperville, IL 60540 


K-2 Electronics 

3990 Varsity Dr. 

Ann Arbor, MI 48104 
(313) 973-6266 


The Lamb's Software 

1469 Aalborg Way 

Solvang, CA 93463 
(805) 688-8369 


Lamo-Lem Laboratories 
Box 2382 
La Jolla, CA 92038 


L & G Enterprises 
Box 6854 
Silver Spring, MD 20906 


D. Lipinski Software 
2737 Susquehanna Rd. 
Roslyn, PA 19001 


L-Monitor 
819 Kenyon Ln. 
Newark, DE 19711 


Andy Longacre, Jr. 

21 Leitch Ave. 

Skaneateles, NY 13152 
(312) 685-3339 


M. C. Lothlorien 

4 Granby Road 

Cheadle Hulme, Cheshire 
U.K. SK8 6LS 


Mac-Man Software 
515 W. 236 St. 
New York, NY 10463 


Macronics Systems Ltd. 
26 Spiers Close 
Knowle, Solihull 
West Midlands 
U.K. B93 9ES 

(05645) 3693 


Mallas Software 
147 St. Johns Rd. 
Wierton, WV 26062 


Management Services Co. 
3227 Pine Needles Rd. 
High Point, NC 27260 


Wm. Maples 

Dept. BG 

688 Moore St. 
Lakewood, CO 80215 


Maranatha 
PO Box 759 
Mableton, GA 30059 

Note: First program: $7.95; 
each additional program in the 
order: $2. 


Markel Software 
PO Box 2392 
Secaucus, NJ 07094-0992 


M. H. Marks Enterprises 

315 Thornberry Ct. 

Pittsburgh, PA 15237 
(412) 486-1694 


McGraw-Hill Book Company 
1221 Avenue of the Americas 
New York, NY 10020 

(212) 997-2486. 


McKelvie Programs 
9 Hamilton Ln. 
Willingboro, NJ 08046 


Melbourne House Software 
347 Reedwood Dr. 
Nashville, TN 37217 
(800) 251-5900 (Ask for 
Melbourne House operator) 


Memotech Corp. 
7550 West Yale Ave., #200 
Denver, CO 80227 

(303) 986-1516 


Micro Design Concepts 
PO Box 280 
Carrollton, TX 75006 


Micro-80 Inc. 
2665 Buzby Rd. 
Oak Harbor, WA 98277 
1-800-352-0458 
(toll free; orders only) 
1-206-675-6143 (info only) 


Microscene 
6 Battenhall Rd, Harborne 
Birmingham B17 9UD U.K. 


Microsystems Specialists 
PO Box 733 
Adelphi, MD 20783. 


Micro Users in Education 
MUSE Information Office 
Teaching Centre 

Westhill College 

Weoley Park Rd. 
Birmingham B29 6LL 
U.K 


Note: Software catalog (many 
ZX educational programs), 4 
journals, 2 reports each year 
free to members. U.S. Member- 
ship: £15 per year. Write for 
details. 


Microware 
5 St. Peters Lane 
Leicester 

U.K. 


R. Midura 
19 Merrifield St., Apt. 3F 
Worcestor, MA 01605 


Midwich Computer Co., Ltd. 
Rickingmall House 
Rickingmall Suffolk 

U.K. 1P22 1MM 


Mill Research 

2307 Adanac St. 

Abbotsford, B.C. 

Canada V25 4T1 
Note: Free catalog. 


Mindware 
15 Tech Circle 
Natick, MA 01760 
(617) 655-3388 
Note: Mindware’s Quickload 
feature on all cassettes. Order 
all products from: 
Eagle Sales Co. 
15 Tech Circle 
Natick, MA 01760 


Mine of Information 

1 Francis Ave. 

St. Albans 

U.K. AL3 6BL 
(0727) 52801 
Telex: 925859 


Mohr & Associates Corp. 
111 N. Baltimore 
Derby, KA 67037 

(316) 788-1526 


Robert C. Moler 
5999 Secor Rd. 
Traverse City, MI 49684 


SYNC Magazine 


LEARN TO 
PROGRAM 


Text and File Organizers with 
ZX DATA FINDER 


A high capacity information 
storage and retrieval tool for 
16 K Timex and Sinclair Com- 
puters. 

Advanced file input and editing 
routines are thoroughly 
analyzed. 

Comprehensive search and 
display methods are fully 
explained. 


AN ADVANCED COURSE 
IN DATA HANDLING 


Free specifications are 
available, or send $9.95 for 
program listing and text to: 


THOMAS B. WOODS 
P.O. Box 64, Jefferson, N.H. 03583 


TWO GREAT ADVENTURES IN 16K 


DRY GULCH: $9.95 


DRY GULCH is an interactive adventure where the 
user/player in short English phrases such as: 
Go North, Take the Hammer, the Iron Bars, etc. 
to explore a deserted old west ghost town and search 
for treasure. It is written in BASIC and is save- 
ee in progress. Estimated time to solve is 10-12 

rs. 


MORLOC CASTLE: $12.95 


Similar in style to DRY GULCH, MORLOC CAS- 
TLE is, however, written in machine language to pro- 
vide much faster response. The object is to find and 
enter a secret castle, locate a magic medallion (de- 
feating a Wizard in the process) and escape with your 
life. Estimated time to solve is 30-50 hours. MORLOC 
CASTLE provides over 200 words of vocabulary, is 
SAVEable in progress and uses every last BYTE of 


1/O ports and EPROM programmer for ZX81/TS1000 
(plans) $5.00 


Schematic documentation, parts lists and software 
listing to build a 24 line 1/O port then use it to program: 
intel 2716, 2732, 2732A, 2764 and Motorola 
MCM2716 EPROMS. The I/O port is based on Intel 
8255A (also uses 1 ea. 74LS30, 74LS32, 7404). The 
programmer uses only one IC (6N139). 

ALL PRICES INCLUDE POSTAGE AND 
HANDLING (NEW YORK RESIDENTS 
ADD TAX) 
UPSTATE LABS 
27 ELVIRA ST. 
ROCHESTER, N.Y. 14606 


FINANCIAL ANALYSIS OF RE- 
TIREMENT AND INVESTMENT 
SAVINGS. STANDARD SAVINGS 
AND IRA’S SHOWING TAX, 
INTEREST, RETIREMENT IN- 
COME, INFLATION, COMPARISON 
AND PLOT. ZX81,T1000. ON TAPE 
FOR $8.95. BOB NORAN, 12817 
PINECREST RD. HERNDON, VA. 
22071 (16K) 


We are an organization of people using Timex/ 
sinclair computers. We share information, pub- 
lish a newsletter, and have a cooperative for com- 
puter products which are discounted. Join us. 


SINCLAIR USERS’ NETWORK 
2170 OAK BROOK CIRCLE 
PALATINE IL 60067 312.934.9375 


A REAL 
KEYBOARD 
FOR YOUR 

TIMEX -SINCLAIR. 


e Many features not found in other keyboards 
e Full-size contoured keyboard 
e Sturdy aluminum chassis 
* 46 Sculptured keys 

e No soldering 


119 Peter St. SC-5 
Union City, NJ 07087 
(201) 864-4410 


% 
SIMULATION 
x ok 


The World Of Sangres..... $9.95 


Adventure to Korvas...... $14.95 
Quest for the staff of life....$9.95! 
Deathship Sabotage....... 9.95 i 
DREW A AA A E SESA 5.00 

Music Machine..1K........ $5.00 


$5. 
All programs come with Tape, 
Case, and instructions 
Add $1.50 for P&H 
Send for FREE catalog 
Horizon Simulations 


789 S. GreenBay Road 
Lake Forest, Il 60045 


K ARARA 
kaai HE dea di I 4G de HE HE HE 


b FE He FEM SE SE SE He 3b T L E ETEN 


ELECTRONIC CIRCUIT DESIGN 
C.A.D. software available for circuit design 
applications. 8K/16K. Filters, Amps, Pads, IC, 
antenna, more. Cassette—$15.95 (+$1.05 
P/H, NY res. add $1.12 tax) or send $1.00 + 
SASE for complete details. 
BOB’S 
451 Center St. 
Lewiston, NY 14092 


FREE JOURNAL 


SINCLAIR owners send S.AS.E. to 
FRIENDLY, Box 122-S 
Wallingford, PA 19086 


SPEC SRR ERE RE RIE ST PE AE a] 
INDEXING AND MICROFORM 
AVAILABLE 


This magazine is indexed in THE MAGAZINE INDEX 
available from Information Access Corporation, 
404 Sixth Avenue, Menlo Park, California, and in 
microform from Xerox University Microfilms, Ann 
Arbor, Michigan and Bell and Howell, Micro Photo 
Division, Wooster, Ohio. 


EXECUTIVE WORKSHOP 


0086 558 + / een CRC 


R 
á PERELE LETITE] 


“TIMEBLASTERS” is an arcade- 
type machine language space 
war game for serious players. A 
complex, fast game with 
dramatic, realistic graphics. 
Satisfaction guaranteed. Send 
$12.95 today to: 


A CALLIOPE SOFTWARE 


4130 Goe DAAN E: 
Albuquerque, N.M. 87110 


P.A.L. 
(programmers at large) 
Announces 2 number crunching programs. 


1. Simplex Algorithm 
Max or Min up to 48 x 48 Tableau in 16K. 
Tableau must be in “Standard Form” $10.95. 
2. Multiple Regression Analysis 
Gives coefficients for up to 10 variables 
(up to 100 observations per variable) 
in 16K. Also gives F statistic for dependant 
variable, T statistic for each coefficient (and 
constant term) coefficient of determination and 
standard deviation of dependant variable 
$15.95. 


ZX81/TS1000 for more in formation and/or 
programs write or send check or money 
order to: 


P.A.L. 


P.0. Box 24362 
Ft. Worth, TX 76112/9362 


SPECIAL BUSINESS PROGRAM 


Cash Flow Analysis with Return on Investment 


Follows the correct compound interest depre- 
ciation accounting method. 


$3.95 — 16K Required 


(503) 771-8564 
7420 S.E. Woodstock Blvd., Portland, OR 97206 


IMPROVED HEAT SINK for ZX81 & 
TS1000 eliminates system crashes 
caused by SAT $7.95 
check/money order or SASE for 


complete details to: 
BASCO, 289 Baxter La, Milford 
CT 06460 


* QUICK AND EASY + 


Perform Your Own Computer Energy Audits! 


Use your Timex/Sinclair 1000 and 
our unique program. $49.95 


TECHNOLOGY PRODUCTS AND SERVICES, INC 
1012 Clearwater Place - PO Box 10207 
West Palm Beach, FL 33404-1207 
305/686-5949 


EEN O OEE E P AT O T O a a S N E a E 


Suppliers, continued... 


Mornae Software 

15 W. 780 Fillmore 

Elmhurst, IL 60126 
Note: Visa/MC. 


Moviedrome-Video 
19 Leighton Ave. 
Pinner, Middlesex U.K. 


Nanosecond Computer Ser- 
vices 

713 David Whitney Bldg. 

Detroit, MI 48226-2060 


National Association of 
Free-lance Programmers 

PO Box 813 

Vienna, VA 22180 


P. Nethercot & R. Rackstraw 
19 Markby Close, Moorside 
Sunderland 
U.K. SR3 2RG 

Note: “Tape only’ recorded 
on your tape at least C12 
~length; send SASE, tape, and 
check to “P. Nethercot.” 


New England Software 
86 South St. 
Hyannis, MA 02601 


Bob Norman 
12817 Rinecrest Rd. 
Herndon, VA 22071 


R. M. Norris 
10402 Montrose Ave., No. 202 
Bethesda, MD 20814 


Orbyte Software 
PO Box 948 
Waterbury, CT 06720 

(203) 753-8308 

Note: Prices include s&h; 3 
or more programs, 10 percent 
off. 


Orion's Belt Enterprises 
807 N. Fairway Rd. 
Glenside, PA 19038 


Orme Electronics 

2 Barripper Rd. 
Cambridge, Cornwall 
U.K. TR14 7QN 


Ken Osborne 

17 Shaftesbury Way 
Royston, Herts 

U.K. SG8 9DE 


Oxford Computer Pub. 

R. L. Associates 

614 W. Manchester Blvd. 

Inglewood, CA 90301 
(213) 671-6667 


P&B Software 
1155 E. Malibu Dr. 
Tempe, AZ 85282 


Panero Software 
3309 Lewis Ave. 
Long Beach, CA 90807 


132 


R. Panwar 

2035 Kentland Dr. 

Houston, TX 77067 
(713) 537-8453 


A. Parsons 
23 Coxhill Gdns, River, 
Dover, Kent 
U.K. CT17 OPX 
(3047) 2895 


Peak 

PO Box 8005 

Boulder, CO 80306-8005 
(303) 665-9512 


Pecos Star Co. 
Box 8348 
Denton, TX 76203 


Pinnacle Software 
152 Nagel Cres. 
Regina, Sask. 
Canada S4N 1N9 
(306) 337-0570 


Pleasantrees Programming 
7760 N. Hopdown Ave. 
Tucson, AZ 85741 


Polymath 
PO Box 800 
Felton, CA 95018 


Powers Associates 
502 Berland Way 
Chula Vista, CA 92011 


Practical Computer Products 
21111 Strathmore Ln. 
Huntington Beach, CA 92646 


Professional Electronics 

109 Chesney Ln. 

Columbia, SC 29209 
1-803-776-8032 


Pyramid Systems, Inc. 
1695 Shenandoah Rd. 
San Marino, CA 91108 


QRA 
PO Box 3073 
San Jose, CA 95156-3073 


Que Corporation 

7960 Castleway Dr. 

Indianapolis, IN 46250 
(317) 842-7162 
1-800-428-5331 (orders) 


RAMstrap 
104 Ridgeway Ave. 
Louisville, KY 40207 


Random Access 
Box 41770G 
Phoenix, AZ 85080 


R. A. Tec. 
PO Box 185 
Young Harris, GA 30582 

Note: Prices include s&h; cat- 
alog: $1 (refundable on first 
order). 


Rave Research 
1005 Mechanic 
Decorah, IA 52101 

(319) 382-8383 

Note: Specialty is musically 
related hardware and software. 
All prices post paid. 


RCO Technical 
PO Box 773 
St. Ann, MO 63074 


Redditch Electronics 
21 Ferney Hill Avenue 
Redditch, Worcs 

U.K. B97 4RU 


Reston Publishing Co. 

c/o Prentice-Hall, Inc. 

320 Hudson Ter. 

Englewood Cliffs, NJ 07632 
(201) 592-2018 


R.1.S.T. Inc. 

PO Box 499 

Fort Hamilton Sta. 

Brooklyn, NY 11209 
(212) 259-4934 


D. C. Roberts 

8 Sheddingdean Close 

Burgess Hill 

West Sussex 

U.K. RH1 5JQ 
Burgess Hill 2658 


Robill Products 
555 Park Ave. 
Paterson, NJ 07504 


Rose Cassettes 

148 Widney Lane 
Solihull, West Midlands 
U.K. B91 3LH 


£2 s&h; sterling money order. 


D. Rowland 
97 Essex Ave. 
Montclair, NJ 07042 


G. Russell Electronics 
RD 1, Box 539 
Centre Hall, PA 16828 


Savage Software 

PO Box 441 

Titusville, FL 32780 
(305) 267-2893 


Nicholas Scarim 
417 Clinton St. 
Brooklyn, NY 11231 


Scientific Software 
6 W. 61 Terrace 
Kansas City, MO 64113 


Scisoft 

5 Minster Gardens 
Newthorpe, Eastwood 
Notts, U.K. 3 


Sensible Technical Solutions 
Division Sema J Corporation 
3510 E. River Dr. 

Green Bay, WI 54301 


Paul Shreeve Software 

428 Hall Rd. 

Norwich, Norfolk 

U.K. NR4 6NF 
0603-58354 


M. Sieder 

5710 Milan Blvd. 
Brossard, Que. 
Canada J4Z 2A9 


Silicon Valley Software 

2334 Hastings Dr. 

Belmont, CA 94002 
(415) 593-4516 


Simplex Software 
PO Box 792 
New Brunswick, NJ 08903 


Simpson Software 

21 Tuttles Lane West 
Wymondham, Norfolk 
U 


.K. 
0953-604605 


Simulsion 
Box 894 
Lemon Grove, CA 92045 


Sinclair Place 
PO Box 2288 
Redmond, WA 98052 

Note: Distributor for: Abacus, 
Aerco, Audiograph, Basicare 
Microsystems, Down East Com- 
puters, Haven Hardware, 
Kopak, Melbourne House, 
Memotech, Reston Publishing, 
William Stuart Systems, Thurnal 
Electronics, UPSystems. Many 
software titles. Send for catalog. 


Sinclair Research Ltd. 
3 Sinclair Plaza 
Nashua, NH 03061 
Note: Prices include s&h. 


“Sin-Time” Review 

PO Box 742163 

Houston, TX 77274 
(713) 771-9924 


Sinware 
Box 8032 
Santa Fe, NM 87504 


Skinner Electonic Enterprises 
PO Box 787 
Fallbrook, CA 92028 

(619) 728-6904 


Smartware 

PO Box 1491 

Melbourne, FL 32935 
(305) 254-9661 


M. A. Smith 

2 Solway Rise 
Dronfield Woodhouse 
Sheffield 

U.K. S18 5ZR 


Thomas J. Smith 
43715 Gadsden Ave. 
Lancaster, CA 93534 


SYNC Magazine 


2 


=" 
S 


$39.95 (KIT) 
$59.95 (A&T) 


ANALOG INTERFACE FOR THE ZX81 


Welcome your computer to the “real worid” of analog 
signal processing. VOTEM is a complete package, con- 
sisting of the necessary hardware and software to enable 
your computer to measure voltages and temperatures. 
VOTEM also includes circuitry that conditions the tape 
signal for dependable LOADs. 


e Software compatible with Timex TMS-1000, Sinclair 
ZX81/80-48K) 

e Requires absolutely no modifications to computer 

e Measures voltages and temperatures 


° Probe provided for air and liquid temperature 
measurements 


e Resolution is better than 14 bits (0.00005V or 0.04 
degrees C) 


e Voltage range of +1V can be expanded with on-board 
resistors 


e Low power, requires less than 20mA at +11V 
unregulated 


e Can be powered from computer's supply (cable included) 
* Tape signal conditioning circuitry 
e Tape signal monitoring capability (audio and visual) 
e Manual includes detailed kit assembly and calibration 
* Software for calibration and applications fits in 1K RAM 
e Instructions for adapting to other Z80 computer systems 
© Conipact, 1” by 4” by 3” 
Also, static RAM chips, 6116P-3 (2K by 8) with instructions 
for upgrading Sinclair ZX81 computer from 1K to 2K. Only 
$11.95 each. Send check or money order. Include $3 shipp- 
ing and handling. 

Down East Computers 

P.O. Box 3096 
Greenville, NC 27834 


Only $10 
Grizzly FLIGHT SIMULATION 
and AIRLINE MANAGEMENT Game 
Free Animated Graphics 
Course with each order! 
Hensley & Associates 
Box 334 Asheboro, NC 27203 


STARTER PACKAGE 
ZX/TS (1K) 

This is a group of 14 programs to introduce the lan- 
auge basic. These programs cover several topics 
games, education & graphics) only $14. 

Troiano Software Company 
P.O. Box 40 
Nesconset, New York 11767 


ZX80/81 REGISTER 


Details of 700 suppliers, 550 programs, 250 hardware 
items and 100 publications in U.K. 


108 pages long including new supplement 
Send $11 to 


YOUNGS’ COMPUTER PUBLICATIONS, 2 Wood- 
land Way, Gosfield, Halstead, Essex CO9 1TH U.K. 


Send for details of our monthly trade circular 


TIRED OF ROUTINE PROGRAMS? WRITE 
FOR FREE CATALOG OF ovER 90 Bus- 
INESS, FINANCIAL, SCIENTIFIC, HOME 
AND GAME PROGRAMS, , , PROGRAM AIDS 
UAS BOX612 HADDONFIELD,N. J.08033 


ARE YOU FOR SALE? 

If you have marketable software let us hear from 
you. If it meets our quality standards we could 
make you a cash offer or suggest a royalty 
agreement. If not we’ll be honest and explain 
why. Send for our SOFTWARE AUTHORS IN- 
FORMATION GUIDE. It could be the 
beginning... 

ROBOTEC, INC., P.O. Box 55, Rossford,OH 43460 


“For Adults Only’’ 


An adult program to add 
spice to your life. Not a game, 
but an aid to better under- 
Standing of your lovers 


desires. You’ll enjoy this pro- 
gram if you enjoy loving... 


$19.95 «1.50 pan 


Florida resident add 5% tax 


FOR SALE: INFORMATION! 
MicroAce/ZX80/ZX8 1/TS 1000 


T.W. VESSELS, Rt. 1 Box 77-S3 
Brownsville, KY 42210 
**DO IT YOURSELF and SAVE!!*** 


x 


1983 Directory 


* Where to find: Disk Drives, RAM Extensions, Print- 
ers, Modems, Keyboards, Game & Serious Soft- 
ware, Books, Periodicals, Programming Aids, and 
other Exciting Accessories! 

* Articles on: Special applications like Control Cir- 
Cuitry, Enhanced Graphics, Voice Generation, Music 
Synthesis, Video Inversion, Light Pens, Joysticks, 
etc. 

* Complete Descriptions: We'll tell you what it is, 
bey: it does, how much it costs, and where to 

uy it. 

* Jam-packed w/photographs: We knew you’d 
want to see what these products look like. So, we 
got pictures and put them in! 


Only $5.00... Postpaid! 


To Order: Send check, money order, or VISA/MC 
number and expiration date. MN residents add 6% 
sales tax. 


Dealer inquiries Welcome. 


E. Arthur Brown Company 
Dept. ZA-2 1702 Oak Knoll Drive 
Alexandria, MN 56308 Ph: 612/762-8847 


“Why pay more for combinations of 
peripherals and software for your Timex 
Sinclair? lm offering combinations of pe- 
ripherals and software at unbeatable 
prices. Many brands available. For further 
details, including price lists and users 
group discount information, write SKT 
Enterprises, P.O. Box 23955, Washington, 
D.C. 20024.” 


gram? Circle 


COMPUTER ENGINEERING SERVICES 


The Jarrett Company 
P.O. BOX 1222 
SHOW LOW, ARIZONA 85901 


THE MOST COMPLETE SOURCE OF 
SERVICES FOR THE COMPUTER 
ENTREPRENEUR 


Software Duplication on Cassette. 
Marketing/Publication/Packaging/ 
Manufacture and Prototyping. 
Write for Free Brochure! 


ZX-80 8K ROM USERS 
Completely expand your ZX-80 with 8K 
Rom to a ZX-81 with full use of Fast and Siow. 
Smooth flicker free performance! 
Complete Kit: $32.50 & $2.50 postage & 
handling; PCB only $19.95 & $1.25 
The Expandable ZX-80 and ZX-81 
TS-1000 / Microace Too 
A book of hardware projects that you can 
build yourself, from memory expansion to 
speech synthesis. Only $9.95 & $1.25 p&h. 
(Dealers Inquiries Invited) 


Timex ~ 
~ZX81 


WORD PROCESSING 
For ZxX81/Timex 1000 with 


16K 32K 48K or 64K RAM. 
(Please specifiy RAM version.) 
ONLY $7.95 (Limited time only) 


ALSO AVAILABLE: 


Checkbook Balancer—helps_ with the 
monthly chore! Ahamur—are you able to be 
King? Rule an island to see! Escape— inside 
a deadly barrier with you are Xroids. Can you 
guess who's for dinner? Rebel Raider—Dark 
Faker is coming! You must stop him! Market- 
ing—buy/sell stocks to make your fortune, 
or nothing! SPECIAL: Any one program for 
$7.95 add only $2. for each additional pro- 


gram! 
MARANATHA 
Box 759-C, Mableton, Ga. 30059 


Need a good game to play or pro- 
hess board with in- 
structions $5.00. Send your record- 
ed Circle Chess games and pro- 
grams for publication in Circle 

hess Journal, Box 63, Des 
Plaines, IL 60017. 


MT-SOFT 2ZX81/TS 8k ROM/16K RAM 

THE Another (List & Learn) Product 
TEACHER for the 2ZX/TS Newcomer 
‘““AMORITIZATION’’ 


$6.95 Cassette/Listing 


MT-Soft, Box 2638, Aurora, Il. 60507 


zx@& = =—TAROT~ Tsiooo 
PERSONAL CARD INTERPRETATION 
IK CASSETTE $10 POSTAGE INCL. 
- ALSO AVAILABLE: | 
cae an Meee hres oh alan ie 
JORHYTHMS, ONLY 
$2.00 EACH CICK), $3 £0 "FOR BOTH 


Box abe COR 
P.O.BOX 1955, CORVALLIS, OR 
97539 


Suppliers, continued... 


Softest 
10 Richmond Lane 
Romsey, Hants 
U.K. 

Romsey 513676 


Softsync, Inc. 

14 E. 34th St. 

New York, NY 10016 
(212) 685-2080 


Softwar 

Box 205 
Rossland, B.C. 
Canada VOG 1Y0 


Software Development 
Associates 
3328 W. Las Palmaritas 
Phoenix, AZ 85021 
Note: Add $1.50 s&h per 
order ($3 for UK). Free catalog 
for SASE. 


The Software House 
4226 E. West Hwy. 
Chevy Chase, MD 20815 
Note: All 3 games for 16K 
RAM. Cassette: $15. 


Software Lab East 
121 Gordon St. 
Ridgefield Park, NY 07660 


Soft Way 
3308 Midway Dr., Dept. 124 
San Diego, CA 92110 


Spectra Computer Problems 
PO Box 41795 
Tucson, AZ 85717 


Spencer Software 

The Sycamores 

Queens Road, Hodthorpe 
Nr. Worksop Notts 

U.K. S80 4UT 


Strategem Cybernetics, Inc. 
286 Corbin PI. 
Brooklyn, NY 11235 

(212) 934-3729 


Sunflower Systems 

718 East Avenue B. 

Hutchinson, KS 67501 
(316) 662-2134 


Suntronics Co., Inc. 
12621 Crenshaw Blvd. 
Hawthorne, CA 90250 


Support Systems One 
PO Box 1794 
Philadelphia, PA 19105 


Syber, Inc. 
1325 Diller Rd. 
Ocean Springs, MS 39564 


Sybex, Inc. 

2344 6th St. 

Berkeley, CA 94710 
(415) 848-8233 


134 


Synchronizing Education 
and Games 
688 Sherene Terrace 
London, Ontario 
Canada N6H 3K1 
(519) 471-9089 


The Sync-Lair 
1665 Knoll 
San Luis Obispo, CA 93401 


Syncmaster 

Box 511 

Oak Ridge, NC 27310 
(800) 334-0854 x888 
(919) 643-7120 (in NC) 


Syncware Co. 

PO Box 5177 

El Monte, CA 91734 
(213) 448-4113 


Syntax ZX80 Inc. 

RD 2, Box 457 

Harvard, MA 01451 
(617) 456-3661 


Technomatic, Ltd. 
17 Burnley Rd. 
London 

U.K. NW10 


Teletek Co. 

15 Central Way 
Suite 169 

Kirkland, WA 98033 


THM Software 
154 Laconia Ave. 
Staten Island, NY 10305 


3G Company, Inc. 

Rt. 3, Box 28A 

Gaston, OR 97119 
(503) 662-4492 


Thurnall Electronics 
c/o Sinclair Place 

PO Box 2288 
Redmond, WA 98052 


Timedata, Ltd. 

16, Hemmells 

High Road Laindon 
Basildon, Essex, U.K. 


Timedata 
3 Waldon Rd. 
Califon, NJ 07830 


Timeworks, Inc. 

PO Box 321 

Deerfield, IL 60015 
(312) 291-9200 


TMR Intelligence 
PO Box 1902 
Ogden, UT 84402-1902 


Traffic Technology 
PO Box 2 
Warminster, Wiltshire 
U.K. BA12 7QX 

037 388 316 


Tree Systems 

Suite 233 

3645 28th St. 

Grand Rapids, MI 49508 


Trixieware 

176 Midanbury Lane 

Southampton 

U.K. SO2 4GX 
0703-551301 


Troiano Software Co. 
PO Box 
Nesconset, NY 11767 


TSG Enterprises 
54 Richwood PI. 
Denville, NU 07834 


T-S Systems 
440 Riverside Dr. 
New York, NY 10027 


2-Bit Software 
PO Box 2036 
Del Mar, CA 92014 
(619) 481-3629 
(charge orders only; Visa/MC) 


2K Express 
119 Liberty St. 
Owego, NY 13827 


UAS 
Box 612 
Haddonfield, NJ 08033 


The Ultimate Blackwood 
PO Box 7427 
Santa Cruz, CA 95061 


Upstate Labs 
27 Elvira St. 
Rochester, NY 14606 


UPSystems 

Dept. BG 

PO Box 501901 
Houston, TX 77250-1901 


Utilities Engineering 
1213 19th Street, PO Box 299 
Brigantine, NJ 08203 

(609) 266-1774 


V and H Computer Services 

182c Kingston Road 

Staines, Middlesex U.K. 
Staines 58041 


Video Arcade 
824 Val Vista 
Sheridan, WY 82801 


Vidiom, Dept. C 

PO Box 3118 

Providence, RI 02906 
(401) 861-0085 


Thomas Wagner 
Softwareversand 
Postfach 112243S 
D-8900 Augsburg 
West Germany 

Note: German Catalog. 


Walsh & Simmons, Inc. 
2511 lowa St. 
St. Louis, MO 63104 


Wida Software 

2 Nicholas Gardens 
London 

U.K. W5 5HY 


Wildfire Publishing Co. 

One So. Fairview Ave. 

Suite C 

Goleta, CA 93117 
(805) 967-8444 


John Wiley & Sons 

605 Third Ave. 

New York, NY 10158 
(212) 850-6000 


M. Williams 
Books by Mail 


Box 1445-F 


East St. Louis, IL 62201 


Michael B. Williams 
1300 DePaul Way 
Virginia Beach, VA 23464 


Wisconsinc Electronics 
PO Box 332 
Milton, WI 53563 


Bob Woish 

102 North Lane, B3 

Conshohocken, PA 19428 
Note: All items sent postpaid. 


Thomas B. Woods 
PO Box 64 
Jefferson, NY 03583 


Word Software 
175 Osborn Ave. 
New Haven, CT 06511 


Eric Yruegas 
4706 Langley Ave. 
Whitehall, OH 43213 


Matthew Zenkar 
142 Holcroft Rd. 
Rochester, NY 14612 


Zeta Software 
PO Box 3522 
Greenville, SC 29608 


Z-Games 
PO Box 367 
Ringoes, NJ 08511 


Z-West 

PO Box 2411 

Vista, CA 92083 
(619) 757-1387 


ZX81 Programs 
106-B Antoinette Ct. 
Charlottesville, VA 22903 


ZX-Guaranteed 
29 Chadderton Dr. 
Unsworth, Bury, Lancs U.K. 


ZX-Panding, Ltd. 
PO Box 25 
Newton, NC 28658 a” 


SYNC Magazine 


am 


Get the 


most from 


& 


Sinclair 
or 
Sinclair 


omputer. 


k 


Here’s the best from Sync, 
the exciting magazine devoted 
to Sinclairs! 


he Best of Sync is a collection of more than 80 of the 

most valuable articles, programs, tutorials and re- 
views that appeared in Volume One of Sync, the magazine 
for Timex Sinclair and Sinclair owners. 


This information-packed book is a vital resource for 
anyone who'd like to get more work (and more fun!) from 
a Timex Sinclair 1000, a Sinclair ZX8l or ZX80, or a 
MicroAce computer. Topics covered include: 

e Games 

e Mathematical applications 

è Graphics techniques 
software programming 
Translation 
Machine language hardware 
Resource listings 
Product reviews 
e Complete glossary 


In The Best of Sync you'll find game programs like 
“Forest Treasure” and “Motorcycle Race Game’’...hard- 
ware plans for a “Key Click Generator” and a “Parallel 
Interface”... programming features on “Handling Charac- 
ter Strings in the ZX80,” “Converting from Other BASICs” 
and “An Introduction to Machine 
Code.” And that’s just a small 
sample. 


These ultrapractical fea- 
tures appeared in issues of Sync 
that are now out of print and 
nearly impossible to find. But 
you can still make use of 
the important information, 
techniques and programs 
they contain—by ordering 
The Best of Sync today! 


Also available at your local 


bookstore or computer store. 8%" x 11”, softcover. 


For faster service, PHONE TOLL FREE: 800-631-8112 


(In NJ only: 201-540-0445) 
CREATIVE COMPUTING PRESS 


Dept.ND2F, 39 East Hanover Avenue, Morris Plains, NJ 07950 


Please send me The Best of Sync, Volume One, at $9.95* plus 
$2.00 postage and handling each. Outside USA add $3.00 per order. #6M 


[ ] PAYMENT ENCLOSED $ *Residents of CA, NJ and NY 
State add applicable sales tax. 


[ ] CHARGE MY: [ |] American Express [ ] MasterCard [ ] Visa 


Card: Nos na a a a ep: DAG 


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Mr./Mrs./Ms. 


(please print full name) 


RAIES RARE Oe ene A e RAW a a a S SAO 


ee) a Sae e r ANE 
[_] Send me a FREE Creative Computing Catalog. 


bam am e e e e ee ee ee ee ee ee ee ee ee 


= 
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7 MAESFALLEN, BOW ST, DYFED, ENGLAND SY24 SBA 


ZX81 & Spectrum 
Games 


Chess 1.4: Ten level m/c graphic screen display. 
16K ZX81 $17.95 


Invaders: Very fast m/c action. Includes mystery 
ship and increasingly difficult screens. 


16K ZX81 $8.95 


Mazeman: A fast action m/c game that reproduces 
the spirit of the original. The Spectrum version 
includes excellent graphics. 


16K ZX81 $8.95—Spectrum $9.95 
Can also be used with AGF joystick. 


Adventure 1: Based on the original game by 

Crowther, this game was the start of the Adventure 

craze. Reviewed Sinclair User, issue 2. Features 

Save game routine as the game can literally take 
months to complete. 


16K ZX81 $17.95—48K Spectrum $19.95 


We have a full stock of all programs and supply by return of 
post (which is included in the price) 
Add $2.00 for postage/handling 


64K RAM ‘119% 


What can you use it for? 


...inventory control(3000+#item)...word 
processing(15tpages of double-spaced 
text)...spreadsheets(75 rows &columns).. 


data bases(almost triple your 16K file 
space)...adventures(many rooms’)... 
math (200# simultaneous equations)... 
payroll...CAUTHORS! We want to sell 
your 64K software! High royalties! 
Send it tous!) ¢ 

~ is fully assembled and 
This RAM tested. Plug it into 
your ZX80/1 or TS1000 and go! It is 
cased and fully featured. Assembled inUS 


You can pay more, but 
you cant buy more! 


$5.00 Shipping & Handling. KS residents 
add $4.20 sst. Shipped UPS-no PO Box 
please.MOs - certified checks speed service! 


UNFLOWER 718 €. Ave. B 


YSTEMS "Sf" “<stevee2-2134. 


Index to Advertisers 


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Fue PR Tore TN IAES A AT 108, 131 Forth Dimensions: Tie sina. s.2i.cscas.cs.bontevntanatescnsutisanstqovebieds 87 R.1L.S.T. Computer Component.............ccccscssscsssrevessessorenss 47 
PAG VALI TOCHNICA Nase: cccsancfscovatcessshenesesaccdeecersadevceesgasedesssetss 14 Friendly COM PUTER <5. os.. siasisedsesiecoussantoanscunnnianacpasgnaetieetink 131 Robotech ANC. aii eeicincestsccischossesseecsacessvs cheb yucntcesnowaelanbes 7, 133 
PSB TEM SICOEING mra toes AAE air a ap ebate 122 Fron TOC WRG 625656. Siok ai 050. tehh sasi Sse os Tiesa g iann eS 16, 126 Russell, G Electronics oo. .0..6.65<, desescccse.shoascveetsectacnevangcceceane 95 
Aero aS pa ae ES AS Ee eaha ni ee 136 Fourth: Design, Fhe.. nres benne anaa reaa aia e AE 57 St Martins Press oiii cousnsaspeisinaiadagaieasen sep cos NACA 56 
AC AUO e ea AA a A a i apinsa 119 MEANT A N PRA A E A E EE AA EE A E 115 Savage Softwares :s.<6..sciscsccssssasctcaaeesascasdecoccdeadechaecnsedseustens 121 
PRETO TRE OE A E RES ERIE TEATE A E 38 GOM i BlECtronics «oss csv. ie esweac as cates EnS r EAAS A AAAA aE TITRA 65 Sight and Sound: onesna alc ssananoccnscarnasoncescevcavevseascens 51 
Apropos TCC NOBY -ts earestiente sr etaed iare se ievedot 46 General Systems Consulting.....s..sesseesserseessersseseoresesscessse 101 e d PRR ESE O AA T S 9 
Arnan EIeCONCE aaea Eear ee Aa Sosea Seaia 21 GEFADMICOIND 5028 EEE A T EA A E E 12 Simpler SoftWare 55 oii ck she cade duvadeckrndose issver ENESES 18 
PR Ges A CORN A WES io eso ER cao rakaa tia aaa 126 PERCU E A E sasendetans A TAE 122 SSinClaiG Pla CO. cocci. AEA E T NE AT ERES 61 
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NT To DA ET soe BEERE ERRE EE ocak caste vena edavstnnseddpacsevs saves scsees 85 Heath Computer Services ..............:5sccsccdvosgecssdeuseasnvesacuds 114 L oss sg eeh AT AE T AA A T OES 8, 66 
EOS a E T AR el A AU AL TEE D TTT, 131 Hensley and ASSOCIatES....;...0....:....ccseseconssoosesensssssecensesenses 133 SiPPUSWATG TERRAE OENE ST A AATE 126 
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BRK ARE AA soy ches IA ES NERE AET AT 100 TE ERREA A AANE NE OET PREA E RT 32 Skinner Electronics Enterprises.............ccccsssscsssssseeseeeeeees 122 
aa AAEE E eee eee oes ee raat cree Ma Latta E A S 131 Hurricane: BIGCCrOnits: 5..:.<:..<ses¢-ceys4 <ce-ochooesthcndevee me Gteetoseans 117 SK T EMter arises iiin i Acccacisasetvansecsoacasechsdereessesbessavarvesaabecs 133 
Bonnie A- Clyde: SOVATA et SrA EN Sn oarre ee 81 TMPSTOOMI DUNE Boh aise coda ccc casvanteeh sscesoo pia aanta AARAA 36, 37 SOM WAC rE Ta i E N oc gs> ice E O A ATT tancdtneetaass stand 81 
Brainchild Company WOKS ...........csccccessscssessesessseeeeeseeeees 133 Interface cIANOVALIONS .25..63-cccses-nes<aCe cucu saseerscnbsooesosetermaaed 102 Software Supermarkets... .....5..0.:,cccsssecevcssorcponssseatsceeevacsevenses 29 
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BArthere Brownie reser een AA Rae haan AE aoea 57, 133 Katte Omens cicccsscscctacssnciecocanctssesesceccse suas ssancdencarestrest 122 Software Development Association ...........ssscccsssreeessresensees 79 
Brown Cottage Industries sssaaa cis iisveecosenieosonss seven 81 KDVHECPuBlishers....ccicicitinpticsdseesesctscap enacts inara Aii 101 Solutions npese nnctsssawdse cates as isore esoe Nooti a Seea ada Es EPA 85 
Business Management Specialists ............cccccsccesseeesseeeeeeees 77 Kopak Creationin a o na a Eeoae Cover 3, 131 Sophia SYSE: iscsi tesiecoiiseo Be chooopactavsin ESSN C tnak SAt 122, 126 
SB WN A E E E E E E O E E ETT 4 E | I eee E ANE EEE PO OTE S Bet STATT 74 SOUP COWACE. acen aet a a ae Aa T ARE 82 
Byte Sizes Prod Bis: AnA rarae ereraa Eata sae so ereki eieae 108 Lambs SOP Wa Re ienee eenas de aaccesosecaatcoesesastgisesddvstensts sopases 125 Space Breaks. is.:.c26csacscen-occecceteesnecsecscscinbquenhcesensecsseanaceses 98 
Caliope SIN wares iiscik.scvsrcscescaeesskoessencconwncebabecceesesseedecys 131 Dea T RSA T ove Sasser N AE EAEAN E ATE T cass 99 Spyder Electronics, n ..:-..cevcsessscssscssessenvsccesieesuatseaesossursacs 113 
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POW BTOCYS 72 E a E A E rates cae in ofudagethacuiscanses 53 Micro: DesigmiConceptsccis, sicsc.s.i8 esr esperi a s aiana 88 Technology Products and Service............cscscsssssssseesesssses 131 
EAT PON A E AE R E EEE TN 25 Micro Developments ric 2.506 Saiaiaccyadhc caxchacee snes s eigarar ari Sani 85 CLOCK EEE ANE AA E EN N OANT 126 
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Compur AddOns aeeie etenoa aS SES does sire aE 23 a en I R EE SA E E AE ATOA E AE O 19 EET S AE I S P E ATEN SA A T T T 26 
Computer Assista MOE s aeaa aea en iria E OS SAPAA TAPAD EREA 92 Microsystemis: Specialists.. cosia aesae seans aese EES 103 Time wors aa a SS Pine Lm eae PE aia T SINNA, 9 
COMPIE Contr ween eee a s E N e einn T2 Monae SOleware r EEE A E A T T pet 15 Tréé Systems 2i..c.cchcdoscsckecussnossasasveratabesaces eeta ohasa e SATE. 70 
Computer Engineering Services- .nesossossss Siere errs scris? 133 ONT Ear AMD nie E a RE E TA 133 Troiano Software tasr. tivananascasedonteigtusts ciusseeaaevencetalacueds 133 
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S E E DER E AEE A N T E a 86 Nanosecond Computer Service...........:.:.ssscsssscsassscscessses 126 DAB EE TEE caver voced E E cactonedaslesoushsoebtahonseeaseiines 95 
ME OSITION ICR esos AE TEE E EAAS A 131 New World Concepts an: 805555. fescet scatvocsshaectnctm E A ass 98 UPS ySteinis xcsszccccicsset ss cackstoosssuaceanseeceevocvasoevsese ok step CAIK ELTEL EES 40 
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SUT RY. COMPETE -are create ative tones ee raahia api E TA aid ande 126 Original Program of the Month Club............ccccsssssessseees 109 User Friendly Researchyni...c.c.c.ctivsscccsesscssssansecsasacsnsaascesens 85 
DiC y as BB eden REA ENAA E seater T E ES 24 Orions. Belt: Enterprises ccics.cde.scceicvescssseds oocssoseceavacssaucs sect 103 Utility Auditing Services Of Penn Jersey... 133 
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DC A A TEE APE EN E E AEE A AET E E 11 Pleasantrees Programming ..............cc.ssssscssssesssesseesesesseees 67 Yocum, JORG ius aciseascconsstveccconsdencksssedberededeatersinvenenrelengan sek 133 
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Z-99 COMPILER 03-5201 $19.95 
An indispensible program for those who wish to use 
machine code but don’t understand it. It automatically 
translates a large subset of BASIC into machine code 
which is then stored in a REM statement for use as a 
subroutine in any program you write. It operates on 35 
of the most valuable sinclair BASIC commands in- 
cluding PRINT, IF THEN, GOTO, POKE, GOTO, 
COSUB, FOR LOOPS etc. 


ACCOUNTS 03-1022 $19.95 
Accounts is a simple to use, extremely versatile pro- 
gram for the 16K ZX81. The main feature of the pro- 
gram is a 200 record transaction file which can be sear- 
ched, printed on displayed. The program has been 
thoroughly tested and used in the authors household 
for 10 months and this long gestation period has 
resulted in many refinements not usually found in pro- 
grams of this type. 


GRAND PRIX 03-4033 $14.95 
Drive a race car around a twisting road course. Speed, 
gearbox and breaking are under your control but the 
patches of oil and other hazzards are not. 


MAZE DRAG RACE 03-4201 $14.95 
Your racing car is in a giant maze, only one ninth of 
which is displayed on the screen. Very fast and lots of 
fun. 

NIGHTMARE PARK 03-4031 $14.95 
Few who enter ever return. Can you outwit the 


demons and sorcerers who haunt the dreaded 
Nightmare Park? 


PONTOON 03-4030 $14.95 
Play Black Jack against the computer. You begin with 
$200 and with nerve. luck and good judgement you 
could walk away a winner. 

PUCKMAN 03-4027 $14.95 
Try our fast-moving version of the famous arcade 
game. 


SPACE DEFENDER 


03-4037 $14.95 


A stratagy game with graphic star-map. Defend your 
space station against enemy missles. 


QSAVE" 


A hardware/software package that allows you to load 
and save a 16K file in 26 seconds instead of 7 minutes! 
Cleans up and strenthens the digital signal. Increases 
baud rate from 250 to over 4000 bps. Comes complete 
with connecting cables. A must for all ZX81/TS1000 
owners 04-1000 $39.95 


der 


from $25.00 to $29.99 add $3.45 


Packing & Shipping 


Or add shipping charges and send order with payment to: f Iht J 001 


WORDFIX 03-1046 $19.95 
Effectevely a mini word processor. It allows you to in- 
put unformatted text and to process it into any format 
you like. The results can then either be printed out or 
stored. (23 pages of text can be stored if required). 


GRAFIX 03-6005 $14.95 
The only way to produce complex images. Superbly 
easy to use. When your design is complete it can easily 
be incorporated into other programs if desired. Images 
can be stored & recalled at any time, reflected (ie a 
mirror image),or mixed together. You can change the 
‘color’ & produce inverse at the touch of a key. Simply — 
the most flexible image processor available. 


COMPOSER 03-3012 $19.95 


Actually write your own tunes in standard notation 
and your ZX81/TS1000 plays them! You specify tempo, 
rhythm, note duration and pitch (within a range of six 
octaves). The computer plays it back through the TV 
speaker, an AM radio, or your cassette recorder. 


STAR TREKKER 03-403-4 $14.95 
You are in command of the S.S. Enterprise and at war 
with the evil Klingons. Your five-year mission: To seek 
out and destroy the enemy! 


STOCKS AND SHARES 03-2019 $15.95 
Here’s your chance to take on Wall Street. Prices are 
affected by trade slumps, take over bids, recessions, 
etc. An exiting and challanging game for one or two 
players. 


TAILGUNNER 03-4030 $14.95 
You control the tail-gun of a rebel cruiser as the Im- 
perial fleet pursues. 

TOWERING INFERNO 03-4036 $14.95 


Disaster has struck a giant skyscraper and you must 
rescue the occupants before they fall to their deaths. 


ALIEN 03-4035 $14.95 
A deadly alien is loose on board your space craft. You 
must choose the right weapon and kill it before it kills 
yOU. 

BREAKOUT 03-4028 $14.95 
An excellent version of the classic arcade game. 


TOUCH-A-MATIC" 


Kopak’s ‘‘Touch-A-Matic”’ vinyl keyboard overlay gives 
you the power to type more accurately and much 
faster. It requires no wires, no soldering, and comes 
with complete instructions. Just remove the adhesive 
backing, press into position, and you're ready for 
touch-typing with ease. 01-0007 $9.95 


Creations Inc. 
119 Peter St. no.9 


up to $9.99 to$14.99 add$2.00 trom $30.00 to $39.99 add $3.70 
from $15.00 to $18.99 add$2.50 from $40.00 to $49.99 add $3.95 
over $50.00 add $4.25 


trom $20.00 to $24.99 add $2.85 Dealer inquiries invited. Union City, NJ 07087 


THE PROWRITER COMETH. 


(And It Cometh On Like Gangbusters./ 


Evolution. 

It's inevitable. An eternal 
verity. | 

Just when you think you've 
got it knocked, and you're 
resting on your laurels, some- 
body comes along and makes 
a dinosaur out of you. 

Witness what happened to 
the Centronics printer when 
the Epson MX-80 came along 
in 1981. 

And now, witness what's 
happening to the MX-80 as 
the ProWriter cometh to be 
the foremost printer of the 
decade. 

SPEED 

MX-80: 80 cps, for 46 full lines 
per minute throughput. 
PROWRITER: 120 cps, for 

63 full lines per minute 
throughput. 

GRAPHICS 

MX-80: Block graphics standard, 
fine for things like bar graphs. 
PROWRITER: High-resolu- 
tion graphics features, fine 
for bar graphs, smooth curves, 
thin lines, intricate details, etc. 
PRINTING 

MX-80: Dot matrix business 
quality. 

PROWRITER: Dot matrix 
correspondence quality, with 
incremental printing capability 
standard. 

FEED 

MX-80: Tractor feed standard; 
optional friction-feed kit for 
about $75 extra. 
PROWRITER: Both tractor 
and friction feed standard. 
INTERFACE 

MX-80: Parallel interface 
standard; optional serial 
interface for about $75 extra. 
PROWRITER: Available stan- 
dard—either parallel interface 
or parallel/serial interface. 


WARRANTY 

MX-80: 90 days, from Epson. 
PROWRITER: One full year, 
from Leading Edge. 

PRICE 

Heh, heh. 

Marketed Exclusively by Leading 
Edge Products, Inc., 225 Turnpike 
Street, Canton, Massachusetts 
02021. Call: toll-free 1-800-343-6833; 
or in Massachusetts call collect 


(617) 828-8150. Telex 951-624. 


LEADING 
EDGE. 


For a free poster of “Ace” 
(Prowniter s pilot) doing his thing, 
please write us. | 


S@uexn.e eo & #%